ILIAS  release_5-4 Revision v5.4.26-12-gabc799a52e6
class.ilUtil.php
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1<?php
2/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */
3
7use ILIAS\Filesystem\Util\LegacyPathHelper;
8use ILIAS\FileUpload\DTO\ProcessingStatus;
9use ILIAS\Filesystem\MetadataType;
10
21class ilUtil
22{
23 protected static $db_supports_distinct_umlauts;
24
35 public static function getImageTagByType($a_type, $a_path, $a_big = false)
36 {
37 global $DIC;
38
39 $lng = $DIC->language();
40
41 $size = ($a_big)
42 ? "big"
43 : "small";
44
45 include_once("./Services/Object/classes/class.ilObject.php");
46 $filename = ilObject::_getIcon("", $size, $a_type);
47
48 return "<img src=\"" . $filename . "\" alt=\"" . $lng->txt("obj_" . $a_type) . "\" title=\"" . $lng->txt("obj_" . $a_type) . "\" border=\"0\" vspace=\"0\"/>";
49 }
50
63 public static function getTypeIconPath($a_type, $a_obj_id, $a_size = 'small')
64 {
65 include_once("./Services/Object/classes/class.ilObject.php");
66 return ilObject::_getIcon($a_obj_id, $a_size, $a_type);
67 }
68
79 public static function getImagePath($img, $module_path = "", $mode = "output", $offline = false)
80 {
81 global $DIC;
82
83 $styleDefinition = null;
84 if (isset($DIC["styleDefinition"])) {
85 $styleDefinition = $DIC["styleDefinition"];
86 }
87
88 if (is_int(strpos($_SERVER["PHP_SELF"], "setup.php"))) {
89 $module_path = "..";
90 }
91 if ($module_path != "") {
92 $module_path = "/" . $module_path;
93 }
94
95 // default image
96 $default_img = "." . $module_path . "/templates/default/images/" . $img;
97
98 // use ilStyleDefinition instead of account to get the current skin and style
99 require_once("./Services/Style/System/classes/class.ilStyleDefinition.php");
100 $current_skin = ilStyleDefinition::getCurrentSkin();
101 $current_style = ilStyleDefinition::getCurrentStyle();
102
103 if (is_object($styleDefinition)) {
104 $image_dir = $styleDefinition->getImageDirectory($current_style);
105 }
106 if ($current_skin == "default") {
107 $user_img = "." . $module_path . "/templates/default/" . $image_dir . "/" . $img;
108 $skin_img = "." . $module_path . "/templates/default/images/" . $img;
109 } elseif (is_object($styleDefinition) && $current_skin != "default") {
110 $user_img = "./Customizing/global/skin/" .
111 $current_skin . $module_path . "/" . $image_dir . "/" . $img;
112 $skin_img = "./Customizing/global/skin/" .
113 $current_skin . $module_path . "/images/" . $img;
114 }
115
116 // temp svg patch
117 /*
118 $pi = pathinfo($img);
119 if ($pi["dirname"] != "") {
120 $pi["dirname"] = $pi["dirname"]."/";
121 }
122 $svg_img = ".".$module_path."/templates/default/images/".$pi["dirname"].$pi["filename"].".svg";
123 if (file_exists($svg_img))
124 {
125 return $svg_img;
126 }*/
127
128
129 if ($offline) {
130 return "./images/" . $img;
131 } elseif (@file_exists($user_img) && $image_dir != "") {
132 return $user_img; // found image for skin and style
133 } elseif (file_exists($skin_img)) {
134 return $skin_img; // found image in skin/images
135 }
136
137 return $default_img; // take image in default
138 }
139
150 public static function getHtmlPath($relative_path)
151 {
152 if (substr($relative_path, 0, 2) == './') {
153 $relative_path = (substr($relative_path, 1));
154 }
155 if (substr($relative_path, 0, 1) != '/') {
156 $relative_path = '/' . $relative_path;
157 }
158 $htmlpath = ILIAS_HTTP_PATH . $relative_path;
159 return $htmlpath;
160 }
161
174 public static function getStyleSheetLocation($mode = "output", $a_css_name = "", $a_css_location = "")
175 {
176 global $DIC;
177
178 $ilSetting = $DIC->settings();
179
180 // add version as parameter to force reload for new releases
181 // use ilStyleDefinition instead of account to get the current style
182 require_once("./Services/Style/System/classes/class.ilStyleDefinition.php");
183 $stylesheet_name = (strlen($a_css_name))
184 ? $a_css_name
185 : ilStyleDefinition::getCurrentStyle() . ".css";
186 if (strlen($a_css_location) && (strcmp(substr($a_css_location, -1), "/") != 0)) {
187 $a_css_location = $a_css_location . "/";
188 }
189
190 $filename = "";
191 // use ilStyleDefinition instead of account to get the current skin
192 require_once("./Services/Style/System/classes/class.ilStyleDefinition.php");
193 if (ilStyleDefinition::getCurrentSkin() != "default") {
194 $filename = "./Customizing/global/skin/" . ilStyleDefinition::getCurrentSkin() . "/" . $a_css_location . $stylesheet_name;
195 }
196 if (strlen($filename) == 0 || !file_exists($filename)) {
197 $filename = "./" . $a_css_location . "templates/default/" . $stylesheet_name;
198 }
199 $vers = "";
200 if ($mode != "filesystem") {
201 $vers = str_replace(" ", "-", $ilSetting->get("ilias_version"));
202 $vers = "?vers=" . str_replace(".", "-", $vers);
203 // use version from template xml to force reload on changes
204 $skin = ilStyleDefinition::getSkins()[ilStyleDefinition::getCurrentSkin()];
205 $vers .= ($skin->getVersion() != '' ? str_replace(".", "-", '-' . $skin->getVersion()) : '');
206 }
207 return $filename . $vers;
208 }
209
220 public static function getJSLocation($a_js_name, $a_js_location = "", $add_version = false)
221 {
222 global $DIC;
223
224 $ilSetting = $DIC->settings();
225
226 // add version as parameter to force reload for new releases
227 $js_name = $a_js_name;
228 if (strlen($a_js_location) && (strcmp(substr($a_js_location, -1), "/") != 0)) {
229 $a_js_location = $a_js_location . "/";
230 }
231
232 $filename = "";
233 // use ilStyleDefinition instead of account to get the current skin
234 require_once("./Services/Style/System/classes/class.ilStyleDefinition.php");
235 if (ilStyleDefinition::getCurrentSkin() != "default") {
236 $filename = "./Customizing/global/skin/" . ilStyleDefinition::getCurrentSkin() . "/" . $a_js_location . $js_name;
237 }
238 if (strlen($filename) == 0 || !file_exists($filename)) {
239 $filename = "./" . $a_js_location . "templates/default/" . $js_name;
240 }
241 $vers = "";
242 if ($add_version) {
243 $vers = str_replace(" ", "-", $ilSetting->get("ilias_version"));
244 $vers = "?vers=" . str_replace(".", "-", $vers);
245 }
246 return $filename . $vers;
247 }
248
256 public static function getP3PLocation()
257 {
258 if (defined("ILIAS_MODULE")) {
259 $base = '';
260 for ($i = 0;$i < count(explode('/', ILIAS_MODULE));$i++) {
261 $base .= "../Services/Privacy/";
262 }
263 } else {
264 $base = "./Services/Privacy/";
265 }
266
267 if (is_file($base . "w3c/p3p.xml")) {
268 return ILIAS_HTTP_PATH . "w3c/p3p.xml";
269 } else {
270 return ILIAS_HTTP_PATH . "/w3c/p3p_template.xml";
271 }
272 }
273
281 public static function getNewContentStyleSheetLocation($mode = "output")
282 {
283 global $DIC;
284
285 $ilSetting = $DIC->settings();
286
287 // add version as parameter to force reload for new releases
288 if ($mode != "filesystem") {
289 $vers = str_replace(" ", "-", $ilSetting->get("ilias_version"));
290 $vers = "?vers=" . str_replace(".", "-", $vers);
291 }
292
293 // use ilStyleDefinition instead of account to get the current skin and style
294 require_once("./Services/Style/System/classes/class.ilStyleDefinition.php");
295 if (ilStyleDefinition::getCurrentSkin() == "default") {
296 $in_style = "./templates/" . ilStyleDefinition::getCurrentSkin() . "/"
297 . ilStyleDefinition::getCurrentStyle() . "_cont.css";
298 } else {
299 $in_style = "./Customizing/global/skin/" . ilStyleDefinition::getCurrentSkin() . "/"
300 . ilStyleDefinition::getCurrentStyle() . "_cont.css";
301 }
302
303 if (is_file("./" . $in_style)) {
304 return $in_style . $vers;
305 } else {
306 return "templates/default/delos_cont.css" . $vers;
307 }
308 }
309
328 public static function formSelect(
329 $selected,
330 $varname,
331 $options,
332 $multiple = false,
333 $direct_text = false,
334 $size = "0",
335 $style_class = "",
336 $attribs = "",
337 $disabled = false
338 ) {
339 global $DIC;
340
341 $lng = $DIC->language();
342
343 if ($multiple == true) {
344 $multiple = " multiple=\"multiple\"";
345 } else {
346 $multiple = "";
347 $size = 0;
348 }
349
350 $class = " class=\" form-control " . $style_class . "\"";
351
352 // use form-inline!
353 // this is workaround the whole function should be set deprecated
354 // $attributes = " style='display:inline-block;' ";
355
356 if (is_array($attribs)) {
357 foreach ($attribs as $key => $val) {
358 $attributes .= " " . $key . "=\"" . $val . "\"";
359 }
360 }
361 if ($disabled) {
362 $disabled = ' disabled=\"disabled\"';
363 }
364
365 $size_str = "";
366 if ($size > 0) {
367 $size_str = ' size="'.$size.'" ';
368 }
369 $str = "<select name=\"" . $varname . "\"" . $multiple . " $class " . $size_str . " $attributes $disabled>\n";
370
371 foreach ((array) $options as $key => $val) {
372 $style = "";
373 if (is_array($val)) {
374 $style = $val["style"];
375 $val = $val["text"]; // mus be last line, since we overwrite
376 }
377
378 $sty = ($style != "")
379 ? ' style="' . $style . '" '
380 : "";
381
382 if ($direct_text) {
383 $str .= " <option $sty value=\"" . $key . "\"";
384 } else {
385 $str .= " <option $sty value=\"" . $val . "\"";
386 }
387 if (is_array($selected)) {
388 if (in_array($key, $selected)) {
389 $str .= " selected=\"selected\"";
390 }
391 } elseif ($selected == $key) {
392 $str .= " selected=\"selected\"";
393 }
394
395 if ($direct_text) {
396 $str .= ">" . $val . "</option>\n";
397 } else {
398 $str .= ">" . $lng->txt($val) . "</option>\n";
399 }
400 }
401
402 $str .= "</select>\n";
403
404 return $str;
405 }
406
416 public static function getSelectName($selected, $values)
417 {
418 return($values[$selected]);
419 }
420
432 public static function formCheckbox($checked, $varname, $value, $disabled = false)
433 {
434 $str = "<input type=\"checkbox\" name=\"" . $varname . "\"";
435
436 if ($checked == 1) {
437 $str .= " checked=\"checked\"";
438 }
439
440 if ($disabled) {
441 $str .= " disabled=\"disabled\"";
442 }
443
444 $array_var = false;
445
446 if (substr($varname, -2) == "[]") {
447 $array_var = true;
448 }
449
450 // if varname ends with [], use varname[-2] + _ + value as id tag (e.g. "user_id[]" => "user_id_15")
451 if ($array_var) {
452 $varname_id = substr($varname, 0, -2) . "_" . $value;
453 } else {
454 $varname_id = $varname;
455 }
456
457 // dirty removal of other "[]" in string
458 $varname_id = str_replace("[", "_", $varname_id);
459 $varname_id = str_replace("]", "", $varname_id);
460
461 $str .= " value=\"" . $value . "\" id=\"" . $varname_id . "\" />\n";
462
463 return $str;
464 }
465
477 public static function formDisabledRadioButton($checked, $varname, $value, $disabled)
478 {
479 if ($disabled) {
480 $str = "<input disabled type=\"radio\" name=\"" . $varname . "\"";
481 } else {
482 $str = "<input type=\"radio\" name=\"" . $varname . "\"";
483 }
484 if ($checked == 1) {
485 $str .= " checked=\"checked\"";
486 }
487
488 $str .= " value=\"" . $value . "\"";
489 $str .= " id=\"" . $value . "\" />\n";
490
491 return $str;
492 }
493
494
505 public static function formRadioButton($checked, $varname, $value, $onclick = null, $disabled = false)
506 {
507 $str = '<input ';
508
509 if ($onclick) {
510 $str .= ('onclick="' . $onclick . '"');
511 }
512
513 $str .= (" type=\"radio\" name=\"" . $varname . "\"");
514 if ($checked == 1) {
515 $str .= " checked=\"checked\"";
516 }
517
518 if ($disabled) {
519 $str .= " disabled=\"disabled\"";
520 }
521
522 $str .= " value=\"" . $value . "\"";
523
524 $str .= " id=\"" . $value . "\" />\n";
525
526 return $str;
527 }
528
529
539 public static function formInput($varname, $value, $disabled = false)
540 {
541 $str = "<input type=\"input\" name=\"" . $varname . "\"";
542 if ($disabled) {
543 $str .= " disabled";
544 }
545
546 $str .= " value=\"" . $value . "\"";
547
548 $str .= " id=\"" . $value . "\" />\n";
549
550 return $str;
551 }
552
553
560 public static function checkInput($vars)
561 {
562 // TO DO:
563 // Diese Funktion soll Formfeldeingaben berprfen (empty und required)
564 }
565
572 public static function setPathStr($a_path)
573 {
574 if ("" != $a_path && "/" != substr($a_path, -1)) {
575 $a_path .= "/";
576 //$a_path = substr($a_path,1);
577 }
578
579 //return getcwd().$a_path;
580 return $a_path;
581 }
582
595 public static function switchColor($a_num, $a_css1, $a_css2)
596 {
597 if (!($a_num % 2)) {
598 return $a_css1;
599 } else {
600 return $a_css2;
601 }
602 }
603
612 public static function checkFormEmpty($emptyFields)
613 {
614 $feedback = "";
615
616 foreach ($emptyFields as $key => $val) {
617 if ($val == "") {
618 if ($feedback != "") {
619 $feedback .= ", ";
620 }
621 $feedback .= $key;
622 }
623 }
624
625 return $feedback;
626 }
627
652 public static function Linkbar($AScript, $AHits, $ALimit, $AOffset, $AParams = array(), $ALayout = array(), $prefix = '')
653 {
654 $LinkBar = "";
655
656 $layout_link = "";
657 $layout_prev = "&lt;&lt;";
658 $layout_next = "&gt;&gt;";
659
660 // layout options
661 if ((is_array($ALayout) && (count($ALayout) > 0))) {
662 if ($ALayout["link"]) {
663 $layout_link = " class=\"" . $ALayout["link"] . "\"";
664 }
665
666 if ($ALayout["prev"]) {
667 $layout_prev = $ALayout["prev"];
668 }
669
670 if ($ALayout["next"]) {
671 $layout_next = $ALayout["next"];
672 }
673 }
674
675 // show links, if hits greater limit
676 // or offset > 0 (can be > 0 due to former setting)
677 if ($AHits > $ALimit || $AOffset > 0) {
678 if (!empty($AParams)) {
679 foreach ($AParams as $key => $value) {
680 $params .= $key . "=" . $value . "&";
681 }
682 }
683 // if ($params) $params = substr($params,0,-1);
684 if (strpos($AScript, '&')) {
685 $link = $AScript . "&" . $params . $prefix . "offset=";
686 } else {
687 $link = $AScript . "?" . $params . $prefix . "offset=";
688 }
689
690 // ?bergehe "zurck"-link, wenn offset 0 ist.
691 if ($AOffset >= 1) {
692 $prevoffset = $AOffset - $ALimit;
693 if ($prevoffset < 0) {
694 $prevoffset = 0;
695 }
696 $LinkBar .= "<a" . $layout_link . " href=\"" . $link . $prevoffset . "\">" . $layout_prev . "&nbsp;</a>";
697 }
698
699 // Ben?tigte Seitenzahl kalkulieren
700 $pages = intval($AHits / $ALimit);
701
702 // Wenn ein Rest bleibt, addiere eine Seite
703 if (($AHits % $ALimit)) {
704 $pages++;
705 }
706
707 // Bei Offset = 0 keine Seitenzahlen anzeigen : DEAKTIVIERT
708 // if ($AOffset != 0) {
709
710 // ansonsten zeige Links zu den anderen Seiten an
711 for ($i = 1 ;$i <= $pages ; $i++) {
712 $newoffset = $ALimit * ($i - 1);
713
714 if ($newoffset == $AOffset) {
715 $LinkBar .= "[" . $i . "] ";
716 } else {
717 $LinkBar .= '<a ' . $layout_link . ' href="' .
718 $link . $newoffset . '">[' . $i . ']</a> ';
719 }
720 }
721 // }
722
723 // Checken, ob letze Seite erreicht ist
724 // Wenn nicht, gebe einen "Weiter"-Link aus
725 if (!(($AOffset / $ALimit) == ($pages - 1)) && ($pages != 1)) {
726 $newoffset = $AOffset + $ALimit;
727 $LinkBar .= "<a" . $layout_link . " href=\"" . $link . $newoffset . "\">&nbsp;" . $layout_next . "</a>";
728 }
729
730 return $LinkBar;
731 } else {
732 return false;
733 }
734 }
735
747 public static function makeClickable($a_text, $detectGotoLinks = false)
748 {
749 // New code, uses MediaWiki Sanitizer
750 $ret = $a_text;
751
752 // www-URL ohne ://-Angabe
753 $ret = preg_replace(
754 "/(^|[\s]+)(www\.)([A-Za-z0-9#&=?.\/\-]+)/i",
755 "$1http://$2$3",
756 $ret
757 );
758
759 // ftp-URL ohne ://-Angabe
760 $ret = preg_replace(
761 "/(^|[\s]+)(ftp\.)([A-Za-z0-9#&=?.\/\-]+)/i",
762 "$1ftp://$2$3",
763 $ret
764 );
765
766 // E-Mail (this does not work as expected, users must add mailto: manually)
767 //$ret = preg_replace("/(([a-z0-9_]|\-|\.)+@([^[\s]*)([A-Za-z0-9\-]))/i",
768 // "mailto:$1", $ret);
769
770 // mask existing image tags
771 $ret = str_replace('src="http://', '"***masked_im_start***', $ret);
772
773 include_once("./Services/Utilities/classes/class.ilMWParserAdapter.php");
774 $parser = new ilMWParserAdapter();
775 $ret = $parser->replaceFreeExternalLinks($ret);
776
777 // unmask existing image tags
778 $ret = str_replace('"***masked_im_start***', 'src="http://', $ret);
779
780 // Should be Safe
781
782 if ($detectGotoLinks) {
783 // replace target blank with self and text with object title.
784 $regExp = "<a[^>]*href=\"(" . str_replace("/", "\/", ILIAS_HTTP_PATH) . "\/goto.php\?target=\w+_(\d+)[^\"]*)\"[^>]*>[^<]*<\/a>";
785 // echo htmlentities($regExp);
786 $ret = preg_replace_callback(
787 "/" . $regExp . "/i",
788 array("ilUtil", "replaceLinkProperties"),
789 $ret
790 );
791
792 // Static links
793 $regExp = "<a[^>]*href=\"(" . str_replace("/", "\/", ILIAS_HTTP_PATH) . "\/goto_.*[a-z0-9]+_([0-9]+)\.html)\"[^>]*>[^<]*<\/a>";
794 // echo htmlentities($regExp);
795 $ret = preg_replace_callback(
796 "/" . $regExp . "/i",
797 array("ilUtil", "replaceLinkProperties"),
798 $ret
799 );
800 }
801
802 return($ret);
803 }
804
818 public static function replaceLinkProperties($matches)
819 {
820 $link = $matches[0];
821 $ref_id = $matches[2];
822
823 if ($ref_id > 0) {
824 $obj_id = ilObject::_lookupObjId($ref_id);
825 if ($obj_id > 0) {
826 $title = ilObject::_lookupTitle($obj_id);
827 $link = "<a href=" . $matches[1] . " target=\"_self\">" . $title . "</a>";
828 }
829 }
830 return $link;
831 }
832
851 public static function makeDateSelect($prefix, $year = "", $month = "", $day = "", $startyear = "", $a_long_month = true, $a_further_options = array(), $emptyoption = false)
852 {
853 global $DIC;
854
855 $lng = $DIC->language();
856
857 $disabled = '';
858 if (isset($a_further_options['disabled']) and $a_further_options['disabled']) {
859 $disabled = 'disabled="disabled" ';
860 }
861
862 $now = getdate();
863 if (!$emptyoption) {
864 if (!strlen($year)) {
865 $year = $now["year"];
866 }
867 if (!strlen($month)) {
868 $month = $now["mon"];
869 }
870 if (!strlen($day)) {
871 $day = $now["mday"];
872 }
873 }
874
875 $year = (int) $year;
876 $month = (int) $month;
877 $day = (int) $day;
878
879 // build day select
880
881 $sel_day .= '<select class="form-control" ';
882 if (isset($a_further_options['select_attributes'])) {
883 foreach ($a_further_options['select_attributes'] as $name => $value) {
884 $sel_day .= ($name . '="' . $value . '" ');
885 }
886 }
887
888 $sel_day .= $disabled . "name=\"" . $prefix . "[d]\" id=\"" . $prefix . "_d\">\n";
889
890 if ($emptyoption) {
891 $sel_day .= "<option value=\"0\">--</option>\n";
892 }
893 for ($i = 1; $i <= 31; $i++) {
894 $sel_day .= "<option value=\"$i\">" . sprintf("%02d", $i) . "</option>\n";
895 }
896 $sel_day .= "</select>\n";
897 $sel_day = preg_replace("/(value\=\"$day\")/", "$1 selected=\"selected\"", $sel_day);
898
899 // build month select
900 $sel_month = '<select class="form-control" ';
901 if (isset($a_further_options['select_attributes'])) {
902 foreach ($a_further_options['select_attributes'] as $name => $value) {
903 $sel_month .= ($name . '="' . $value . '" ');
904 }
905 }
906 $sel_month .= $disabled . "name=\"" . $prefix . "[m]\" id=\"" . $prefix . "_m\">\n";
907
908 if ($emptyoption) {
909 $sel_month .= "<option value=\"0\">--</option>\n";
910 }
911 for ($i = 1; $i <= 12; $i++) {
912 if ($a_long_month) {
913 $sel_month .= "<option value=\"$i\">" . $lng->txt("month_" . sprintf("%02d", $i) . "_long") . "</option>\n";
914 } else {
915 $sel_month .= "<option value=\"$i\">" . $i . "</option>\n";
916 }
917 }
918 $sel_month .= "</select>\n";
919 $sel_month = preg_replace("/(value\=\"$month\")/", "$1 selected=\"selected\"", $sel_month);
920
921 // build year select
922 $sel_year = '<select class="form-control" ';
923 if (isset($a_further_options['select_attributes'])) {
924 foreach ($a_further_options['select_attributes'] as $name => $value) {
925 $sel_year .= ($name . '="' . $value . '" ');
926 }
927 }
928 $sel_year .= $disabled . "name=\"" . $prefix . "[y]\" id=\"" . $prefix . "_y\">\n";
929 if ((strlen($startyear) == 0) || ($startyear > $year)) {
930 if (!$emptyoption || $year != 0) {
931 $startyear = $year - 5;
932 }
933 }
934
935 if (($year + 5) < (date('Y', time()) + 5)) {
936 $end_year = date('Y', time()) + 5;
937 } else {
938 $end_year = $year + 5;
939 }
940
941 if ($emptyoption) {
942 $sel_year .= "<option value=\"0\">----</option>\n";
943 }
944 for ($i = $startyear; $i <= $end_year; $i++) {
945 $sel_year .= "<option value=\"$i\">" . sprintf("%04d", $i) . "</option>\n";
946 }
947 $sel_year .= "</select>\n";
948 $sel_year = preg_replace("/(value\=\"$year\")/", "$1 selected=\"selected\"", $sel_year);
949
950 //$dateformat = $lng->text["lang_dateformat"];
951 $dateformat = "d-m-Y";
952 $dateformat = strtolower(preg_replace("/\W/", "", $dateformat));
953 $dateformat = strtolower(preg_replace("/(\w)/", "%%$1", $dateformat));
954 $dateformat = preg_replace("/%%d/", $sel_day, $dateformat);
955 $dateformat = preg_replace("/%%m/", $sel_month, $dateformat);
956 $dateformat = preg_replace("/%%y/", $sel_year, $dateformat);
957 return $dateformat;
958 }
959
978 public static function makeTimeSelect($prefix, $short = true, $hour = "", $minute = "", $second = "", $a_use_default = true, $a_further_options = array())
979 {
980 global $DIC;
981
982 $lng = $DIC->language();
983 $ilUser = $DIC->user();
984
985 $minute_steps = 1;
986 $disabled = '';
987 if (count($a_further_options)) {
988 if (isset($a_further_options['minute_steps'])) {
989 $minute_steps = $a_further_options['minute_steps'];
990 }
991 if (isset($a_further_options['disabled']) and $a_further_options['disabled']) {
992 $disabled = 'disabled="disabled" ';
993 }
994 }
995
996 if ($a_use_default and !strlen("$hour$minute$second")) {
997 $now = localtime();
998 $hour = $now[2];
999 $minute = $now[1];
1000 $second = $now[0];
1001 } else {
1002 $hour = (int) $hour;
1003 $minute = (int) $minute;
1004 $second = (int) $second;
1005 }
1006 // build hour select
1007 $sel_hour = '<select ';
1008 if (isset($a_further_options['select_attributes'])) {
1009 foreach ($a_further_options['select_attributes'] as $name => $value) {
1010 $sel_hour .= $name . '=' . $value . ' ';
1011 }
1012 }
1013 $sel_hour .= " " . $disabled . "name=\"" . $prefix . "[h]\" id=\"" . $prefix . "_h\" class=\"form-control\">\n";
1014
1015 $format = $ilUser->getTimeFormat();
1016 for ($i = 0; $i <= 23; $i++) {
1017 if ($format == ilCalendarSettings::TIME_FORMAT_24) {
1018 $sel_hour .= "<option value=\"$i\">" . sprintf("%02d", $i) . "</option>\n";
1019 } else {
1020 $sel_hour .= "<option value=\"$i\">" . date("ga", mktime($i, 0, 0)) . "</option>\n";
1021 }
1022 }
1023 $sel_hour .= "</select>\n";
1024 $sel_hour = preg_replace("/(value\=\"$hour\")/", "$1 selected=\"selected\"", $sel_hour);
1025
1026 // build minutes select
1027 $sel_minute .= "<select " . $disabled . "name=\"" . $prefix . "[m]\" id=\"" . $prefix . "_m\" class=\"form-control\">\n";
1028
1029 for ($i = 0; $i <= 59; $i = $i + $minute_steps) {
1030 $sel_minute .= "<option value=\"$i\">" . sprintf("%02d", $i) . "</option>\n";
1031 }
1032 $sel_minute .= "</select>\n";
1033 $sel_minute = preg_replace("/(value\=\"$minute\")/", "$1 selected=\"selected\"", $sel_minute);
1034
1035 if (!$short) {
1036 // build seconds select
1037 $sel_second .= "<select " . $disabled . "name=\"" . $prefix . "[s]\" id=\"" . $prefix . "_s\" class=\"form-control\">\n";
1038
1039 for ($i = 0; $i <= 59; $i++) {
1040 $sel_second .= "<option value=\"$i\">" . sprintf("%02d", $i) . "</option>\n";
1041 }
1042 $sel_second .= "</select>\n";
1043 $sel_second = preg_replace("/(value\=\"$second\")/", "$1 selected=\"selected\"", $sel_second);
1044 }
1045 $timeformat = $lng->text["lang_timeformat"];
1046 if (strlen($timeformat) == 0) {
1047 $timeformat = "H:i:s";
1048 }
1049 $timeformat = strtolower(preg_replace("/\W/", "", $timeformat));
1050 $timeformat = preg_replace("/(\w)/", "%%$1", $timeformat);
1051 $timeformat = preg_replace("/%%h/", $sel_hour, $timeformat);
1052 $timeformat = preg_replace("/%%i/", $sel_minute, $timeformat);
1053 if ($short) {
1054 $timeformat = preg_replace("/%%s/", "", $timeformat);
1055 } else {
1056 $timeformat = preg_replace("/%%s/", $sel_second, $timeformat);
1057 }
1058 return $timeformat;
1059 }
1060
1074 public static function is_email($a_email, ilMailRfc822AddressParserFactory $mailAddressParserFactory = null)
1075 {
1076 if (null === $a_email || !is_string($a_email)) {
1077 return false;
1078 }
1079
1080 if ($mailAddressParserFactory === null) {
1081 $mailAddressParserFactory = new ilMailRfc822AddressParserFactory();
1082 }
1083
1084 try {
1085 $parser = $mailAddressParserFactory->getParser((string) $a_email);
1086 $addresses = $parser->parse();
1087 return count($addresses) == 1 && $addresses[0]->getHost() != ilMail::ILIAS_HOST;
1088 } catch (ilException $e) {
1089 return false;
1090 }
1091 }
1092
1101 public static function isPassword($a_passwd, &$customError = null)
1102 {
1103 global $DIC;
1104
1105 $lng = $DIC->language();
1106
1107 include_once('./Services/PrivacySecurity/classes/class.ilSecuritySettings.php');
1108 $security = ilSecuritySettings::_getInstance();
1109
1110 // check if password is empty
1111 if (empty($a_passwd)) {
1112 $customError = $lng->txt('password_empty');
1113 return false;
1114 }
1115
1116 $isPassword = true;
1117 $errors = array();
1118
1119 // check if password to short
1120 if ($security->getPasswordMinLength() > 0 && strlen($a_passwd) < $security->getPasswordMinLength()) {
1121 $errors[] = sprintf($lng->txt('password_to_short'), $security->getPasswordMinLength());
1122 $isPassword = false;
1123 }
1124
1125 // check if password not to long
1126 // Hmmmmm, maybe we should discuss this limitation. In my opinion it is stupid to limit the password length ;-). There should only be a technical limitation (field size in database).
1127 if ($security->getPasswordMaxLength() > 0 && strlen($a_passwd) > $security->getPasswordMaxLength()) {
1128 $errors[] = sprintf($lng->txt('password_to_long'), $security->getPasswordMaxLength());
1129 $isPassword = false;
1130 }
1131
1132 // if password must contains Chars and Numbers
1133 if ($security->isPasswordCharsAndNumbersEnabled()) {
1134 $hasCharsAndNumbers = true;
1135
1136 // check password for existing chars
1137 if (!preg_match('/[A-Za-z]+/', $a_passwd)) {
1138 $hasCharsAndNumbers = false;
1139 }
1140
1141 // check password for existing numbers
1142 if (!preg_match('/[0-9]+/', $a_passwd)) {
1143 $hasCharsAndNumbers = false;
1144 }
1145
1146 if (!$hasCharsAndNumbers) {
1147 $errors[] = $lng->txt('password_must_chars_and_numbers');
1148 $isPassword = false;
1149 }
1150 }
1151
1152 require_once 'Services/Utilities/classes/class.ilStr.php';
1153 if ($security->getPasswordNumberOfUppercaseChars() > 0) {
1154 if (ilStr::strLen($a_passwd) - ilStr::strLen(preg_replace('/[A-Z]/', '', $a_passwd)) < $security->getPasswordNumberOfUppercaseChars()) {
1155 $errors[] = sprintf($lng->txt('password_must_contain_ucase_chars'), $security->getPasswordNumberOfUppercaseChars());
1156 $isPassword = false;
1157 }
1158 }
1159
1160 if ($security->getPasswordNumberOfLowercaseChars() > 0) {
1161 if (ilStr::strLen($a_passwd) - ilStr::strLen(preg_replace('/[a-z]/', '', $a_passwd)) < $security->getPasswordNumberOfLowercaseChars()) {
1162 $errors[] = sprintf($lng->txt('password_must_contain_lcase_chars'), $security->getPasswordNumberOfLowercaseChars());
1163 $isPassword = false;
1164 }
1165 }
1166
1167 // if password must contains Special-Chars
1168 if ($security->isPasswordSpecialCharsEnabled()) {
1169 // check password for existing special-chars
1170 if (!preg_match(self::getPasswordValidChars(true, true), $a_passwd)) {
1171 $errors[] = $lng->txt('password_must_special_chars');
1172 $isPassword = false;
1173 }
1174 }
1175
1176 // ensure password matches the positive list of chars/special-chars
1177 if (!preg_match(self::getPasswordValidChars(), $a_passwd)) {
1178 $errors[] = $lng->txt('password_contains_invalid_chars');
1179 $isPassword = false;
1180 }
1181
1182 // build custom error message
1183 if (count($errors) == 1) {
1184 $customError = $errors[0];
1185 } elseif (count($errors) > 1) {
1186 $customError = $lng->txt('password_multiple_errors');
1187 $customError .= '<br />' . implode('<br />', $errors);
1188 }
1189
1190 return $isPassword;
1191 }
1192
1199 public static function isPasswordValidForUserContext($clear_text_password, $user, &$error_language_variable = null)
1200 {
1201 include_once 'Services/PrivacySecurity/classes/class.ilSecuritySettings.php';
1202 $security = ilSecuritySettings::_getInstance();
1203
1204 $login = null;
1205
1206 if (is_string($user)) {
1207 $login = $user;
1208 } elseif (is_array($user)) {
1209 // Try to get loginname and user_id from array
1210 $login = $user['login'];
1211 $userId = $user['id'];
1212 } elseif ($user instanceof ilObjUser) {
1213 $login = $user->getLogin();
1214 $userId = $user->getId();
1215 }
1216
1217 // The user context (user instance or id) can be used for further validation (e.g. compare a password with the users' password history, etc.) in future releases.
1218
1219 if ($login && (int) $security->getPasswordMustNotContainLoginnameStatus() &&
1220 strpos(strtolower($clear_text_password), strtolower($login)) !== false
1221 ) {
1222 $error_language_variable = 'password_contains_parts_of_login_err';
1223 return false;
1224 }
1225
1226 return true;
1227 }
1228
1236 public static function getPasswordValidChars($a_as_regex = true, $a_only_special_chars = false)
1237 {
1238 if ($a_as_regex) {
1239 if ($a_only_special_chars) {
1240 return '/[_\.\+\?\#\-\*\@!\$\%\~\/\:\;]+/';
1241 } else {
1242 return '/^[A-Za-z0-9_\.\+\?\#\-\*\@!\$\%\~\/\:\;]+$/';
1243 }
1244 } else {
1245 return 'A-Z a-z 0-9 _.+?#-*@!$%~/:;';
1246 }
1247 }
1248
1256 public static function getPasswordRequirementsInfo()
1257 {
1258 global $DIC;
1259
1260 $lng = $DIC->language();
1261
1262 include_once('./Services/PrivacySecurity/classes/class.ilSecuritySettings.php');
1263 $security = ilSecuritySettings::_getInstance();
1264
1265 $infos = array(sprintf($lng->txt('password_allow_chars'), self::getPasswordValidChars(false)));
1266
1267 // check if password to short
1268 if ($security->getPasswordMinLength() > 0) {
1269 $infos[] = sprintf($lng->txt('password_to_short'), $security->getPasswordMinLength());
1270 }
1271
1272 // check if password not to long
1273 if ($security->getPasswordMaxLength() > 0) {
1274 $infos[] = sprintf($lng->txt('password_to_long'), $security->getPasswordMaxLength());
1275 }
1276
1277 // if password must contains Chars and Numbers
1278 if ($security->isPasswordCharsAndNumbersEnabled()) {
1279 $infos[] = $lng->txt('password_must_chars_and_numbers');
1280 }
1281
1282 // if password must contains Special-Chars
1283 if ($security->isPasswordSpecialCharsEnabled()) {
1284 $infos[] = $lng->txt('password_must_special_chars');
1285 }
1286
1287 if ($security->getPasswordNumberOfUppercaseChars() > 0) {
1288 $infos[] = sprintf($lng->txt('password_must_contain_ucase_chars'), $security->getPasswordNumberOfUppercaseChars());
1289 }
1290
1291 if ($security->getPasswordNumberOfLowercaseChars() > 0) {
1292 $infos[] = sprintf($lng->txt('password_must_contain_lcase_chars'), $security->getPasswordNumberOfLowercaseChars());
1293 }
1294
1295 return implode('<br />', $infos);
1296 }
1297
1298 /*
1299 * validates a login
1300 * @access public
1301 * @param string login
1302 * @return boolean true if valid
1303 */
1304 public static function isLogin($a_login)
1305 {
1306 if (empty($a_login)) {
1307 return false;
1308 }
1309
1310 if (strlen($a_login) < 3) {
1311 return false;
1312 }
1313
1314 // FIXME - If ILIAS is configured to use RFC 822
1315 // compliant mail addresses we should not
1316 // allow the @ character.
1317 if (!preg_match("/^[A-Za-z0-9_\.\+\*\@!\$\%\~\-]+$/", $a_login)) {
1318 return false;
1319 }
1320
1321 return true;
1322 }
1323
1337 public static function shortenText(
1338 $a_str,
1339 $a_len,
1340 $a_dots = false,
1341 $a_next_blank = false,
1342 $a_keep_extension = false
1343 ) {
1344 include_once("./Services/Utilities/classes/class.ilStr.php");
1345 if (ilStr::strLen($a_str) > $a_len) {
1346 if ($a_next_blank) {
1347 $len = ilStr::strPos($a_str, " ", $a_len);
1348 } else {
1349 $len = $a_len;
1350 }
1351 // BEGIN WebDAV
1352 // - Shorten names in the middle, before the filename extension
1353 // Workaround for Windows WebDAV Client:
1354 // Use the unicode ellipsis symbol for shortening instead of
1355 // three full stop characters.
1356 if ($a_keep_extension) {
1357 $p = strrpos($a_str, '.'); // this messes up normal shortening, see bug #6190
1358 }
1359 if ($p === false || $p == 0 || strlen($a_str) - $p > $a_len) {
1360 $a_str = ilStr::subStr($a_str, 0, $len);
1361 if ($a_dots) {
1362 $a_str .= "\xe2\x80\xa6"; // UTF-8 encoding for Unicode ellipsis character.
1363 }
1364 } else {
1365 if ($a_dots) {
1366 $a_str = ilStr::subStr($a_str, 0, $len - (strlen($a_str) - $p + 1)) . "\xe2\x80\xa6" . substr($a_str, $p);
1367 } else {
1368 $a_str = ilStr::subStr($a_str, 0, $len - (strlen($a_str) - $p + 1)) . substr($a_str, $p);
1369 }
1370 }
1371 }
1372
1373 return $a_str;
1374 }
1375
1376
1389 public static function shortenWords($a_str, $a_len = 30, $a_dots = true)
1390 {
1391 include_once("./Services/Utilities/classes/class.ilStr.php");
1392 $str_arr = explode(" ", $a_str);
1393
1394 for ($i = 0; $i < count($str_arr); $i++) {
1395 if (ilStr::strLen($str_arr[$i]) > $a_len) {
1396 $str_arr[$i] = ilStr::subStr($str_arr[$i], 0, $a_len);
1397 if ($a_dots) {
1398 $str_arr[$i] .= "...";
1399 }
1400 }
1401 }
1402 return implode(' ', $str_arr);
1403 }
1404
1414 public static function attribsToArray($a_str)
1415 {
1416 $attribs = array();
1417 while (is_int(strpos($a_str, "="))) {
1418 $eq_pos = strpos($a_str, "=");
1419 $qu1_pos = strpos($a_str, "\"");
1420 $qu2_pos = strpos(substr($a_str, $qu1_pos + 1), "\"") + $qu1_pos + 1;
1421 if (is_int($eq_pos) && is_int($qu1_pos) && is_int($qu2_pos)) {
1422 $var = trim(substr($a_str, 0, $eq_pos));
1423 $val = trim(substr($a_str, $qu1_pos + 1, ($qu2_pos - $qu1_pos) - 1));
1424 $attribs[$var] = $val;
1425 $a_str = substr($a_str, $qu2_pos + 1);
1426 } else {
1427 $a_str = "";
1428 }
1429 }
1430 return $attribs;
1431 }
1432
1433
1451 public static function rCopy($a_sdir, $a_tdir, $preserveTimeAttributes = false)
1452 {
1453 $sourceFS = LegacyPathHelper::deriveFilesystemFrom($a_sdir);
1454 $targetFS = LegacyPathHelper::deriveFilesystemFrom($a_tdir);
1455
1456 $sourceDir = LegacyPathHelper::createRelativePath($a_sdir);
1457 $targetDir = LegacyPathHelper::createRelativePath($a_tdir);
1458
1459 // check if arguments are directories
1460 if (!$sourceFS->hasDir($sourceDir)) {
1461 return false;
1462 }
1463
1464 $sourceList = $sourceFS->listContents($sourceDir, true);
1465
1466 foreach ($sourceList as $item) {
1467 if ($item->isDir()) {
1468 continue;
1469 }
1470 try {
1471 $itemPath = $targetDir . '/' . substr($item->getPath(), strlen($sourceDir));
1472 $stream = $sourceFS->readStream($item->getPath());
1473 $targetFS->writeStream($itemPath, $stream);
1474 } catch (\ILIAS\Filesystem\Exception\FileAlreadyExistsException $e) {
1475 // Do nothing with that type of exception
1476 }
1477 }
1478
1479 return true;
1480 }
1481
1482
1498 public static function getWebspaceDir($mode = "filesystem")
1499 {
1500 if ($mode == "filesystem") {
1501 return "./" . ILIAS_WEB_DIR . "/" . CLIENT_ID;
1502 } else {
1503 if (defined("ILIAS_MODULE")) {
1504 return "../" . ILIAS_WEB_DIR . "/" . CLIENT_ID;
1505 } else {
1506 return "./" . ILIAS_WEB_DIR . "/" . CLIENT_ID;
1507 }
1508 }
1509 }
1510
1521 public static function getDataDir()
1522 {
1523 return CLIENT_DATA_DIR;
1524 }
1525
1535 public static function getUsersOnline($a_user_id = 0)
1536 {
1537 include_once("./Services/User/classes/class.ilObjUser.php");
1538 return ilObjUser::_getUsersOnline($a_user_id);
1539 }
1540
1541
1549 public static function ilTempnam($a_temp_path = null)
1550 {
1551 if ($a_temp_path === null) {
1552 $temp_path = ilUtil::getDataDir() . "/temp";
1553 } else {
1554 $temp_path = $a_temp_path;
1555 }
1556
1557 if (!is_dir($temp_path)) {
1558 ilUtil::createDirectory($temp_path);
1559 }
1560 $temp_name = $temp_path . "/" . uniqid("tmp");
1561
1562 return $temp_name;
1563 }
1564
1565
1578 public static function createDirectory($a_dir, $a_mod = 0755)
1579 {
1580 ilUtil::makeDir($a_dir);
1581 //@mkdir($a_dir);
1582 //@chmod($a_dir, $a_mod);
1583 }
1584
1585
1594 public static function unzip($a_file, $overwrite = false, $a_flat = false)
1595 {
1596 global $DIC;
1597
1598 $log = $DIC->logger()->root();
1599
1600 if (!is_file($a_file)) {
1601 return;
1602 }
1603
1604 // if flat, move file to temp directory first
1605 if ($a_flat) {
1606 $tmpdir = ilUtil::ilTempnam();
1607 ilUtil::makeDir($tmpdir);
1608 copy($a_file, $tmpdir . DIRECTORY_SEPARATOR . basename($a_file));
1609 $orig_file = $a_file;
1610 $a_file = $tmpdir . DIRECTORY_SEPARATOR . basename($a_file);
1611 $origpathinfo = pathinfo($orig_file);
1612 }
1613
1614 $pathinfo = pathinfo($a_file);
1615 $dir = $pathinfo["dirname"];
1616 $file = $pathinfo["basename"];
1617
1618 // unzip
1619 $cdir = getcwd();
1620 chdir($dir);
1621 $unzip = PATH_TO_UNZIP;
1622
1623 // the following workaround has been removed due to bug
1624 // http://www.ilias.de/mantis/view.php?id=7578
1625 // since the workaround is quite old, it may not be necessary
1626 // anymore, alex 9 Oct 2012
1627 /*
1628 // workaround for unzip problem (unzip of subdirectories fails, so
1629 // we create the subdirectories ourselves first)
1630 // get list
1631 $unzipcmd = "-Z -1 ".ilUtil::escapeShellArg($file);
1632 $arr = ilUtil::execQuoted($unzip, $unzipcmd);
1633 $zdirs = array();
1634
1635 foreach($arr as $line)
1636 {
1637 if(is_int(strpos($line, "/")))
1638 {
1639 $zdir = substr($line, 0, strrpos($line, "/"));
1640 $nr = substr_count($zdir, "/");
1641 //echo $zdir." ".$nr."<br>";
1642 while ($zdir != "")
1643 {
1644 $nr = substr_count($zdir, "/");
1645 $zdirs[$zdir] = $nr; // collect directories
1646 //echo $dir." ".$nr."<br>";
1647 $zdir = substr($zdir, 0, strrpos($zdir, "/"));
1648 }
1649 }
1650 }
1651
1652 asort($zdirs);
1653
1654 foreach($zdirs as $zdir => $nr) // create directories
1655 {
1656 ilUtil::createDirectory($zdir);
1657 }
1658 */
1659
1660 // real unzip
1661 if (!$overwrite) {
1662 $unzipcmd = ilUtil::escapeShellArg($file);
1663 } else {
1664 $unzipcmd = "-o " . ilUtil::escapeShellArg($file);
1665 }
1666 ilUtil::execQuoted($unzip, $unzipcmd);
1667
1668 chdir($cdir);
1669
1670 // remove all sym links
1671 clearstatcache(); // prevent is_link from using cache
1672 $dir_realpath = realpath($dir);
1673 foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir)) as $name => $f) {
1674 if (is_link($name)) {
1675 $target = readlink($name);
1676 if (substr($target, 0, strlen($dir_realpath)) != $dir_realpath) {
1677 unlink($name);
1678 $log->info("Removed symlink " . $name);
1679 }
1680 }
1681 }
1682
1683 // if flat, get all files and move them to original directory
1684 if ($a_flat) {
1685 include_once("./Services/Utilities/classes/class.ilFileUtils.php");
1686 $filearray = array();
1687 ilFileUtils::recursive_dirscan($tmpdir, $filearray);
1688 if (is_array($filearray["file"])) {
1689 foreach ($filearray["file"] as $k => $f) {
1690 if (substr($f, 0, 1) != "." && $f != basename($orig_file)) {
1691 copy($filearray["path"][$k] . $f, $origpathinfo["dirname"] . DIRECTORY_SEPARATOR . $f);
1692 }
1693 }
1694 }
1695 ilUtil::delDir($tmpdir);
1696 }
1697 }
1698
1705 public static function zip($a_dir, $a_file, $compress_content = false)
1706 {
1707 $cdir = getcwd();
1708
1709 if ($compress_content) {
1710 $a_dir .= "/*";
1711 $pathinfo = pathinfo($a_dir);
1712 chdir($pathinfo["dirname"]);
1713 }
1714
1715 $pathinfo = pathinfo($a_file);
1716 $dir = $pathinfo["dirname"];
1717 $file = $pathinfo["basename"];
1718
1719 if (!$compress_content) {
1720 chdir($dir);
1721 }
1722
1723 $zip = PATH_TO_ZIP;
1724
1725 if (!$zip) {
1726 chdir($cdir);
1727 return false;
1728 }
1729
1730 if (is_array($a_dir)) {
1731 $source = "";
1732 foreach ($a_dir as $dir) {
1733 $name = basename($dir);
1734 $source .= " " . ilUtil::escapeShellArg($name);
1735 }
1736 } else {
1737 $name = basename($a_dir);
1738 if (trim($name) != "*") {
1739 $source = ilUtil::escapeShellArg($name);
1740 } else {
1741 $source = $name;
1742 }
1743 }
1744
1745 $zipcmd = "-r " . ilUtil::escapeShellArg($a_file) . " " . $source;
1746 ilUtil::execQuoted($zip, $zipcmd);
1747 chdir($cdir);
1748 return true;
1749 }
1750
1751 public static function CreateIsoFromFolder($a_dir, $a_file)
1752 {
1753 $cdir = getcwd();
1754
1755 $pathinfo = pathinfo($a_dir);
1756 chdir($pathinfo["dirname"]);
1757
1758 $pathinfo = pathinfo($a_file);
1759 $dir = $pathinfo["dirname"];
1760 $file = $pathinfo["basename"];
1761 $zipcmd = "-r " . ilUtil::escapeShellArg($a_file) . " " . $source;
1762
1763 $mkisofs = PATH_TO_MKISOFS;
1764 if (!$mkisofs) {
1765 chdir($cdir);
1766 return false;
1767 }
1768
1769 $name = basename($a_dir);
1770 $source = ilUtil::escapeShellArg($name);
1771
1772 $zipcmd = "-r -J -o " . $a_file . " " . $source;
1773 ilUtil::execQuoted($mkisofs, $zipcmd);
1774 chdir($cdir);
1775 return true;
1776 }
1777
1786 public static function getConvertCmd()
1787 {
1788 return PATH_TO_CONVERT;
1789 }
1790
1798 public static function execConvert($args)
1799 {
1800 $args = self::escapeShellCmd($args);
1801 ilUtil::execQuoted(PATH_TO_CONVERT, $args);
1802 }
1803
1810 public static function isConvertVersionAtLeast($a_version)
1811 {
1812 $current_version = ilUtil::execQuoted(PATH_TO_CONVERT, "--version");
1813 $current_version = self::processConvertVersion($current_version[0]);
1814 $version = self::processConvertVersion($a_version);
1815 if ($current_version >= $version) {
1816 return true;
1817 }
1818 return false;
1819 }
1820
1827 protected static function processConvertVersion($a_version)
1828 {
1829 if (preg_match("/([0-9]+)\.([0-9]+)\.([0-9]+)([\.|\-]([0-9]+))?/", $a_version, $match)) {
1830 $version = str_pad($match[1], 2, 0, STR_PAD_LEFT) .
1831 str_pad($match[2], 2, 0, STR_PAD_LEFT) .
1832 str_pad($match[3], 2, 0, STR_PAD_LEFT) .
1833 str_pad($match[5], 2, 0, STR_PAD_LEFT);
1834 return (int) $version;
1835 }
1836 }
1837
1847 public static function convertImage(
1848 $a_from,
1849 $a_to,
1850 $a_target_format = "",
1851 $a_geometry = "",
1852 $a_background_color = ""
1853 ) {
1854 $format_str = ($a_target_format != "")
1855 ? strtoupper($a_target_format) . ":"
1856 : "";
1857 $geometry = "";
1858 if ($a_geometry != "") {
1859 if (is_int(strpos($a_geometry, "x"))) {
1860 $geometry = " -geometry " . $a_geometry . " ";
1861 } else {
1862 $geometry = " -geometry " . $a_geometry . "x" . $a_geometry . " ";
1863 }
1864 }
1865
1866 $bg_color = ($a_background_color != "")
1867 ? " -background color " . $a_background_color . " "
1868 : "";
1869 $convert_cmd = ilUtil::escapeShellArg($a_from) . " " . $bg_color . $geometry . ilUtil::escapeShellArg($format_str . $a_to);
1870
1871 ilUtil::execConvert($convert_cmd);
1872 }
1873
1884 public static function resizeImage($a_from, $a_to, $a_width, $a_height, $a_constrain_prop = false)
1885 {
1886 if ($a_constrain_prop) {
1887 $size = " -geometry " . $a_width . "x" . $a_height . " ";
1888 } else {
1889 $size = " -resize " . $a_width . "x" . $a_height . "! ";
1890 }
1891 $convert_cmd = ilUtil::escapeShellArg($a_from) . " " . $size . ilUtil::escapeShellArg($a_to);
1892
1893 ilUtil::execConvert($convert_cmd);
1894 }
1895
1902 public static function img($a_src, $a_alt = null, $a_width = "", $a_height = "", $a_border = 0, $a_id = "", $a_class = "")
1903 {
1904 $img = '<img src="' . $a_src . '"';
1905 if (!is_null($a_alt)) {
1906 $img .= ' alt="' . htmlspecialchars($a_alt) . '"';
1907 }
1908 if ($a_width != "") {
1909 $img .= ' width="' . htmlspecialchars($a_width) . '"';
1910 }
1911 if ($a_height != "") {
1912 $img .= ' height="' . htmlspecialchars($a_height) . '"';
1913 }
1914 if ($a_class != "") {
1915 $img .= ' class="' . $a_class . '"';
1916 }
1917 if ($a_id != "") {
1918 $img .= ' id="' . $a_id . '"';
1919 }
1920 $img .= ' />';
1921
1922 return $img;
1923 }
1924
1931 public static function deliverData($a_data, $a_filename, $mime = "application/octet-stream", $charset = "")
1932 {
1933 $disposition = "attachment"; // "inline" to view file in browser or "attachment" to download to hard disk
1934 // $mime = "application/octet-stream"; // or whatever the mime type is
1935
1936 include_once './Services/Http/classes/class.ilHTTPS.php';
1937
1938 //if($_SERVER['HTTPS'])
1939 if (ilHTTPS::getInstance()->isDetected()) {
1940
1941 // Added different handling for IE and HTTPS => send pragma after content informations
1945 #header("Pragma: ");
1946 #header("Cache-Control: ");
1947 #header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
1948 #header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
1949 #header("Cache-Control: no-store, no-cache, must-revalidate"); // HTTP/1.1
1950 #header("Cache-Control: post-check=0, pre-check=0", false);
1951 } elseif ($disposition == "attachment") {
1952 header("Cache-control: private");
1953 } else {
1954 header("Cache-Control: no-cache, must-revalidate");
1955 header("Pragma: no-cache");
1956 }
1957
1958 $ascii_filename = ilUtil::getASCIIFilename($a_filename);
1959
1960 if (strlen($charset)) {
1961 $charset = "; charset=$charset";
1962 }
1963 header("Content-Type: $mime$charset");
1964 header("Content-Disposition:$disposition; filename=\"" . $ascii_filename . "\"");
1965 header("Content-Description: " . $ascii_filename);
1966 header("Content-Length: " . (string) (strlen($a_data)));
1967
1968 //if($_SERVER['HTTPS'])
1969 if (ilHTTPS::getInstance()->isDetected()) {
1970 header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
1971 header('Pragma: public');
1972 }
1973
1974 header("Connection: close");
1975 echo $a_data;
1976 exit;
1977 }
1978
1979 // BEGIN WebDAV: Show file in browser or provide it as attachment
1987 public static function deliverFile(
1988 $a_file,
1989 $a_filename,
1990 $a_mime = '',
1991 $isInline = false,
1992 $removeAfterDelivery = false,
1993 $a_exit_after = true
1994 ) {
1995 global $DIC;
1996 // should we fail silently?
1997 if (!file_exists($a_file)) {
1998 return false;
1999 }
2000 $delivery = new ilFileDelivery($a_file);
2001
2002 if ($isInline) {
2003 $delivery->setDisposition(ilFileDelivery::DISP_INLINE);
2004 } else {
2005 $delivery->setDisposition(ilFileDelivery::DISP_ATTACHMENT);
2006 }
2007
2008 if (strlen($a_mime)) {
2009 $delivery->setMimeType($a_mime);
2010 }
2011
2012 $delivery->setDownloadFileName($a_filename);
2013 $delivery->setConvertFileNameToAsci((bool) !$DIC->clientIni()->readVariable('file_access', 'disable_ascii'));
2014 $delivery->setDeleteFile($removeAfterDelivery);
2015 $delivery->deliver();
2016 }
2017
2018
2028 public static function readFile($a_file)
2029 {
2030 $chunksize = 1 * (1024 * 1024); // how many bytes per chunk
2031 $buffer = '';
2032 $handle = fopen($a_file, 'rb');
2033 if ($handle === false) {
2034 return false;
2035 }
2036 while (!feof($handle)) {
2037 $buffer = fread($handle, $chunksize);
2038 print $buffer;
2039 }
2040 return fclose($handle);
2041 }
2042
2050 public static function getASCIIFilename($a_filename)
2051 {
2052 // The filename must be converted to ASCII, as of RFC 2183,
2053 // section 2.3.
2054
2066
2069
2070 // #15914 - try to fix german umlauts
2071 $umlauts = array("Ä" => "Ae", "Ö" => "Oe", "Ü" => "Ue",
2072 "ä" => "ae", "ö" => "oe", "ü" => "ue", "ß" => "ss");
2073 foreach ($umlauts as $src => $tgt) {
2074 $a_filename = str_replace($src, $tgt, $a_filename);
2075 }
2076
2077 $ascii_filename = htmlentities($a_filename, ENT_NOQUOTES, 'UTF-8');
2078 $ascii_filename = preg_replace('/\&(.)[^;]*;/', '\\1', $ascii_filename);
2079 $ascii_filename = preg_replace('/[\x7f-\xff]/', '_', $ascii_filename);
2080
2081 // OS do not allow the following characters in filenames: \/:*?"<>|
2082 $ascii_filename = preg_replace('/[:\x5c\/\*\?\"<>\|]/', '_', $ascii_filename);
2083 return $ascii_filename;
2084 }
2085
2092 public static function htmlentitiesOutsideHTMLTags($htmlText)
2093 {
2094 $matches = array();
2095 $sep = '###HTMLTAG###';
2096
2097 preg_match_all("@<[^>]*>@", $htmlText, $matches);
2098 $tmp = preg_replace("@(<[^>]*>)@", $sep, $htmlText);
2099 $tmp = explode($sep, $tmp);
2100
2101 for ($i = 0; $i < count($tmp); $i++) {
2102 $tmp[$i] = htmlentities($tmp[$i], ENT_COMPAT, "UTF-8");
2103 }
2104
2105 $tmp = join($sep, $tmp);
2106
2107 for ($i = 0; $i < count($matches[0]); $i++) {
2108 $tmp = preg_replace("@$sep@", $matches[0][$i], $tmp, 1);
2109 }
2110
2111 return $tmp;
2112 }
2113
2120 public static function getJavaPath()
2121 {
2122 return PATH_TO_JAVA;
2123 //global $ilias;
2124
2125 //return $ilias->getSetting("java_path");
2126 }
2127
2135 public static function appendUrlParameterString($a_url, $a_par, $xml_style = false)
2136 {
2137 $amp = $xml_style
2138 ? "&amp;"
2139 : "&";
2140
2141 $url = (is_int(strpos($a_url, "?")))
2142 ? $a_url . $amp . $a_par
2143 : $a_url . "?" . $a_par;
2144
2145 return $url;
2146 }
2147
2166 public static function makeDir($a_dir)
2167 {
2168 $a_dir = trim($a_dir);
2169
2170 // remove trailing slash (bugfix for php 4.2.x)
2171 if (substr($a_dir, -1) == "/") {
2172 $a_dir = substr($a_dir, 0, -1);
2173 }
2174
2175 // check if a_dir comes with a path
2176 if (!($path = substr($a_dir, 0, strrpos($a_dir, "/") - strlen($a_dir)))) {
2177 $path = ".";
2178 }
2179
2180 // create directory with file permissions of parent directory
2181 umask(0000);
2182 return @mkdir($a_dir, fileperms($path));
2183 }
2184
2185
2205 public static function makeDirParents($a_dir)
2206 {
2207 $dirs = array($a_dir);
2208 $a_dir = dirname($a_dir);
2209 $last_dirname = '';
2210
2211 while ($last_dirname != $a_dir) {
2212 array_unshift($dirs, $a_dir);
2213 $last_dirname = $a_dir;
2214 $a_dir = dirname($a_dir);
2215 }
2216
2217 // find the first existing dir
2218 $reverse_paths = array_reverse($dirs, true);
2219 $found_index = -1;
2220 foreach ($reverse_paths as $key => $value) {
2221 if ($found_index == -1) {
2222 if (is_dir($value)) {
2223 $found_index = $key;
2224 }
2225 }
2226 }
2227
2228 umask(0000);
2229 foreach ($dirs as $dirindex => $dir) {
2230 // starting with the longest existing path
2231 if ($dirindex >= $found_index) {
2232 if (!file_exists($dir)) {
2233 if (strcmp(substr($dir, strlen($dir) - 1, 1), "/") == 0) {
2234 // on some systems there is an error when there is a slash
2235 // at the end of a directory in mkdir, see Mantis #2554
2236 $dir = substr($dir, 0, strlen($dir) - 1);
2237 }
2238 if (!mkdir($dir, $umask)) {
2239 error_log("Can't make directory: $dir");
2240 return false;
2241 }
2242 } elseif (!is_dir($dir)) {
2243 error_log("$dir is not a directory");
2244 return false;
2245 } else {
2246 // get umask of the last existing parent directory
2247 $umask = fileperms($dir);
2248 }
2249 }
2250 }
2251 return true;
2252 }
2253
2254
2270 public static function delDir($a_dir, $a_clean_only = false)
2271 {
2272 if (!is_dir($a_dir) || is_int(strpos($a_dir, ".."))) {
2273 return;
2274 }
2275
2276 $current_dir = opendir($a_dir);
2277
2278 $files = array();
2279
2280 // this extra loop has been necessary because of a strange bug
2281 // at least on MacOS X. A looped readdir() didn't work
2282 // correctly with larger directories
2283 // when an unlink happened inside the loop. Getting all files
2284 // into the memory first solved the problem.
2285 while ($entryname = readdir($current_dir)) {
2286 $files[] = $entryname;
2287 }
2288
2289 foreach ($files as $file) {
2290 if (is_dir($a_dir . "/" . $file) and ($file != "." and $file != "..")) {
2291 ilUtil::delDir($a_dir . "/" . $file);
2292 } elseif ($file != "." and $file != "..") {
2293 unlink($a_dir . "/" . $file);
2294 }
2295 }
2296
2297 closedir($current_dir);
2298 if (!$a_clean_only) {
2299 @rmdir($a_dir);
2300 }
2301 }
2302
2303
2319 public static function getDir($a_dir, $a_rec = false, $a_sub_dir = "")
2320 {
2321 $current_dir = opendir($a_dir . $a_sub_dir);
2322
2323 $dirs = array();
2324 $files = array();
2325 $subitems = array();
2326 while ($entry = readdir($current_dir)) {
2327 if (is_dir($a_dir . "/" . $entry)) {
2328 $dirs[$entry] = array("type" => "dir", "entry" => $entry,
2329 "subdir" => $a_sub_dir);
2330 if ($a_rec && $entry != "." && $entry != "..") {
2331 $si = ilUtil::getDir($a_dir, true, $a_sub_dir . "/" . $entry);
2332 $subitems = array_merge($subitems, $si);
2333 }
2334 } else {
2335 if ($entry != "." && $entry != "..") {
2336 $size = filesize($a_dir . $a_sub_dir . "/" . $entry);
2337 $files[$entry] = array("type" => "file", "entry" => $entry,
2338 "size" => $size, "subdir" => $a_sub_dir);
2339 }
2340 }
2341 }
2342 ksort($dirs);
2343 ksort($files);
2344
2345 return array_merge($dirs, $files, $subitems);
2346 }
2347
2354 public static function stripSlashesArray($a_arr, $a_strip_html = true, $a_allow = "")
2355 {
2356 if (is_array($a_arr)) {
2357 foreach ($a_arr as $k => $v) {
2358 $a_arr[$k] = ilUtil::stripSlashes($v, $a_strip_html, $a_allow);
2359 }
2360 }
2361
2362 return $a_arr;
2363 }
2364
2369 public static function getClientIdByString(string $clientId) : \ILIAS\Data\ClientId
2370 {
2371 $df = new \ILIAS\Data\Factory;
2372
2373 return $df->clientId($clientId);
2374 }
2375
2382 public static function stripSlashesRecursive($a_data, $a_strip_html = true, $a_allow = "")
2383 {
2384 if (is_array($a_data)) {
2385 foreach ($a_data as $k => $v) {
2386 if (is_array($v)) {
2387 $a_data[$k] = ilUtil::stripSlashesRecursive($v, $a_strip_html, $a_allow);
2388 } else {
2389 $a_data[$k] = ilUtil::stripSlashes($v, $a_strip_html, $a_allow);
2390 }
2391 }
2392 } else {
2393 $a_data = ilUtil::stripSlashes($a_data, $a_strip_html, $a_allow);
2394 }
2395
2396 return $a_data;
2397 }
2398
2406 public static function stripSlashes($a_str, $a_strip_html = true, $a_allow = "")
2407 {
2408 if (ini_get("magic_quotes_gpc")) {
2409 $a_str = stripslashes($a_str);
2410 }
2411 //echo "<br><br>-".$a_strip_html."-".htmlentities($a_str);
2412 //echo "<br>-".htmlentities(ilUtil::secureString($a_str, $a_strip_html, $a_allow));
2413 return ilUtil::secureString($a_str, $a_strip_html, $a_allow);
2414 }
2415
2423 public static function stripOnlySlashes($a_str)
2424 {
2425 if (ini_get("magic_quotes_gpc")) {
2426 $a_str = stripslashes($a_str);
2427 }
2428
2429 return $a_str;
2430 }
2431
2438 public static function secureString($a_str, $a_strip_html = true, $a_allow = "")
2439 {
2440 // check whether all allowed tags can be made secure
2441 $only_secure = true;
2442 $allow_tags = explode(">", $a_allow);
2443 $sec_tags = ilUtil::getSecureTags();
2444 $allow_array = array();
2445 foreach ($allow_tags as $allow) {
2446 if ($allow != "") {
2447 $allow = str_replace("<", "", $allow);
2448
2449 if (!in_array($allow, $sec_tags)) {
2450 $only_secure = false;
2451 }
2452 $allow_array[] = $allow;
2453 }
2454 }
2455
2456 // default behaviour: allow only secure tags 1:1
2457 if (($only_secure || $a_allow == "") && $a_strip_html) {
2458 if ($a_allow == "") {
2459 $allow_array = array("b", "i", "strong", "em", "code", "cite",
2460 "gap", "sub", "sup", "pre", "strike", "bdo");
2461 }
2462
2463 // this currently removes parts of strings like "a <= b"
2464 // because "a <= b" is treated like "<spam onclick='hurt()'>ss</spam>"
2465 $a_str = ilUtil::maskSecureTags($a_str, $allow_array);
2466 $a_str = strip_tags($a_str); // strip all other tags
2467 $a_str = ilUtil::unmaskSecureTags($a_str, $allow_array);
2468
2469 // a possible solution could be something like:
2470 // $a_str = str_replace("<", "&lt;", $a_str);
2471 // $a_str = str_replace(">", "&gt;", $a_str);
2472 // $a_str = ilUtil::unmaskSecureTags($a_str, $allow_array);
2473 //
2474 // output would be ok then, but input fields would show
2475 // "a &lt;= b" for input "a <= b" if data is brought back to a form
2476 } else {
2477 // only for scripts, that need to allow more/other tags and parameters
2478 if ($a_strip_html) {
2479 $a_str = ilUtil::stripScriptHTML($a_str, $a_allow);
2480 }
2481 }
2482
2483 return $a_str;
2484 }
2485
2486 public static function getSecureTags()
2487 {
2488 return array("strong", "em", "u", "strike", "ol", "li", "ul", "p", "div",
2489 "i", "b", "code", "sup", "sub", "pre", "gap", "a", "img", "bdo");
2490 }
2491
2492 public static function maskSecureTags($a_str, $allow_array)
2493 {
2494 foreach ($allow_array as $t) {
2495 switch ($t) {
2496 case "a":
2497 $a_str = ilUtil::maskAttributeTag($a_str, "a", "href");
2498 break;
2499
2500 case "img":
2501 $a_str = ilUtil::maskAttributeTag($a_str, "img", "src");
2502 break;
2503
2504 case "p":
2505 case "div":
2506 $a_str = ilUtil::maskTag($a_str, $t, array(
2507 array("param" => "align", "value" => "left"),
2508 array("param" => "align", "value" => "center"),
2509 array("param" => "align", "value" => "justify"),
2510 array("param" => "align", "value" => "right")
2511 ));
2512 break;
2513
2514 default:
2515 $a_str = ilUtil::maskTag($a_str, $t);
2516 break;
2517 }
2518 }
2519
2520 return $a_str;
2521 }
2522
2523 public static function unmaskSecureTags($a_str, $allow_array)
2524 {
2525 foreach ($allow_array as $t) {
2526 switch ($t) {
2527 case "a":
2528 $a_str = ilUtil::unmaskAttributeTag($a_str, "a", "href");
2529 break;
2530
2531 case "img":
2532 $a_str = ilUtil::unmaskAttributeTag($a_str, "img", "src");
2533 break;
2534
2535 case "p":
2536 case "div":
2537 $a_str = ilUtil::unmaskTag($a_str, $t, array(
2538 array("param" => "align", "value" => "left"),
2539 array("param" => "align", "value" => "center"),
2540 array("param" => "align", "value" => "justify"),
2541 array("param" => "align", "value" => "right")
2542 ));
2543 break;
2544
2545 default:
2546 $a_str = ilUtil::unmaskTag($a_str, $t);
2547 break;
2548 }
2549 }
2550
2551 return $a_str;
2552 }
2553
2561 public static function securePlainString($a_str)
2562 {
2563 if (ini_get("magic_quotes_gpc")) {
2564 return stripslashes($a_str);
2565 } else {
2566 return $a_str;
2567 }
2568 }
2585 public static function htmlencodePlainString($a_str, $a_make_links_clickable, $a_detect_goto_links = false)
2586 {
2587 $encoded = "";
2588
2589 if ($a_make_links_clickable) {
2590 // Find text sequences in the plain text string which match
2591 // the URI syntax rules, and pass them to ilUtil::makeClickable.
2592 // Encode all other text sequences in the plain text string using
2593 // htmlspecialchars and nl2br.
2594 // The following expressions matches URI's as specified in RFC 2396.
2595 //
2596 // The expression matches URI's, which start with some well known
2597 // schemes, like "http:", or with "www.". This must be followed
2598 // by at least one of the following RFC 2396 expressions:
2599 // - alphanum: [a-zA-Z0-9]
2600 // - reserved: [;\/?:|&=+$,]
2601 // - mark: [\\-_.!~*\'()]
2602 // - escaped: %[0-9a-fA-F]{2}
2603 // - fragment delimiter: #
2604 // - uric_no_slash: [;?:@&=+$,]
2605 $matches = array();
2606 $numberOfMatches = preg_match_all('/(?:(?:http|https|ftp|ftps|mailto):|www\.)(?:[a-zA-Z0-9]|[;\/?:|&=+$,]|[\\-_.!~*\'()]|%[0-9a-fA-F]{2}|#|[;?:@&=+$,])+/', $a_str, $matches, PREG_OFFSET_CAPTURE);
2607 $pos1 = 0;
2608 $encoded = "";
2609
2610 foreach ($matches[0] as $match) {
2611 $matched_text = $match[0];
2612 $pos2 = $match[1];
2613
2614 // encode plain text
2615 $encoded .= nl2br(htmlspecialchars(substr($a_str, $pos1, $pos2 - $pos1)));
2616
2617 // encode URI
2618 $encoded .= ilUtil::makeClickable($matched_text, $a_detect_goto_links);
2619
2620
2621 $pos1 = $pos2 + strlen($matched_text);
2622 }
2623 if ($pos1 < strlen($a_str)) {
2624 $encoded .= nl2br(htmlspecialchars(substr($a_str, $pos1)));
2625 }
2626 } else {
2627 $encoded = nl2br(htmlspecialchars($a_str));
2628 }
2629 return $encoded;
2630 }
2631
2632
2633 public static function maskAttributeTag($a_str, $tag, $tag_att)
2634 {
2635 global $DIC;
2636
2637 $ilLog = $DIC["ilLog"];
2638
2639 $ws = "[\s]*";
2640 $att = $ws . "[^>]*" . $ws;
2641
2642 while (preg_match(
2643 '/<(' . $tag . $att . '(' . $tag_att . $ws . '="' . $ws . '(([$@!*()~;,_0-9A-z\/:=%.&#?+\-])*)")' . $att . ')>/i',
2644 $a_str,
2645 $found
2646 )) {
2647 $old_str = $a_str;
2648 $a_str = preg_replace(
2649 "/<" . preg_quote($found[1], "/") . ">/i",
2650 '&lt;' . $tag . ' ' . $tag_att . $tag_att . '="' . $found[3] . '"&gt;',
2651 $a_str
2652 );
2653 if ($old_str == $a_str) {
2654 $ilLog->write("ilUtil::maskA-" . htmlentities($old_str) . " == " .
2655 htmlentities($a_str));
2656 return $a_str;
2657 }
2658 }
2659 $a_str = str_ireplace(
2660 "</$tag>",
2661 "&lt;/$tag&gt;",
2662 $a_str
2663 );
2664 return $a_str;
2665 }
2666
2667 public static function unmaskAttributeTag($a_str, $tag, $tag_att)
2668 {
2669 global $DIC;
2670
2671 $ilLog = $DIC["ilLog"];
2672
2673 while (preg_match(
2674 '/&lt;(' . $tag . ' ' . $tag_att . $tag_att . '="(([$@!*()~;,_0-9A-z\/:=%.&#?+\-])*)")&gt;/i',
2675 $a_str,
2676 $found
2677 )) {
2678 $old_str = $a_str;
2679 $a_str = preg_replace(
2680 "/&lt;" . preg_quote($found[1], "/") . "&gt;/i",
2681 '<' . $tag . ' ' . $tag_att . '="' . ilUtil::secureLink($found[2]) . '">',
2682 $a_str
2683 );
2684 if ($old_str == $a_str) {
2685 $ilLog->write("ilUtil::unmaskA-" . htmlentities($old_str) . " == " .
2686 htmlentities($a_str));
2687 return $a_str;
2688 }
2689 }
2690 $a_str = str_replace('&lt;/' . $tag . '&gt;', '</' . $tag . '>', $a_str);
2691 return $a_str;
2692 }
2693
2694 public static function maskTag($a_str, $t, $fix_param = "")
2695 {
2696 $a_str = str_replace(
2697 array("<$t>", "<" . strtoupper($t) . ">"),
2698 "&lt;" . $t . "&gt;",
2699 $a_str
2700 );
2701 $a_str = str_replace(
2702 array("</$t>", "</" . strtoupper($t) . ">"),
2703 "&lt;/" . $t . "&gt;",
2704 $a_str
2705 );
2706
2707 if (is_array($fix_param)) {
2708 foreach ($fix_param as $p) {
2709 $k = $p["param"];
2710 $v = $p["value"];
2711 $a_str = str_replace(
2712 "<$t $k=\"$v\">",
2713 "&lt;" . "$t $k=\"$v\"" . "&gt;",
2714 $a_str
2715 );
2716 }
2717 }
2718
2719 return $a_str;
2720 }
2721
2722 public static function unmaskTag($a_str, $t, $fix_param = "")
2723 {
2724 $a_str = str_replace("&lt;" . $t . "&gt;", "<" . $t . ">", $a_str);
2725 $a_str = str_replace("&lt;/" . $t . "&gt;", "</" . $t . ">", $a_str);
2726
2727 if (is_array($fix_param)) {
2728 foreach ($fix_param as $p) {
2729 $k = $p["param"];
2730 $v = $p["value"];
2731 $a_str = str_replace(
2732 "&lt;$t $k=\"$v\"&gt;",
2733 "<" . "$t $k=\"$v\"" . ">",
2734 $a_str
2735 );
2736 }
2737 }
2738 return $a_str;
2739 }
2740
2741 public static function secureLink($a_str)
2742 {
2743 $a_str = str_ireplace("javascript", "jvscrpt", $a_str);
2744 $a_str = str_ireplace(array("%00", "%0a", "%0d", "%1a", "&#00;", "&#x00;",
2745 "&#0;", "&#x0;", "&#x0a;", "&#x0d;", "&#10;", "&#13;"), "-", $a_str);
2746 return $a_str;
2747 }
2748
2762 public static function stripScriptHTML($a_str, $a_allow = "", $a_rm_js = true)
2763 {
2764 //$a_str = strip_tags($a_str, $a_allow);
2765
2766 $negativestr = "a,abbr,acronym,address,applet,area,base,basefont," .
2767 "big,blockquote,body,br,button,caption,center,cite,code,col," .
2768 "colgroup,dd,del,dfn,dir,div,dl,dt,em,fieldset,font,form,frame," .
2769 "frameset,h1,h2,h3,h4,h5,h6,head,hr,html,i,iframe,img,input,ins,isindex,kbd," .
2770 "label,legend,li,link,map,menu,meta,noframes,noscript,object,ol," .
2771 "optgroup,option,p,param,q,s,samp,script,select,small,span," .
2772 "strike,strong,style,sub,sup,table,tbody,td,textarea,tfoot,th,thead," .
2773 "title,tr,tt,u,ul,var";
2774 $a_allow = strtolower($a_allow);
2775 $negatives = explode(",", $negativestr);
2776 $outer_old_str = "";
2777 while ($outer_old_str != $a_str) {
2778 $outer_old_str = $a_str;
2779 foreach ($negatives as $item) {
2780 $pos = strpos($a_allow, "<$item>");
2781
2782 // remove complete tag, if not allowed
2783 if ($pos === false) {
2784 $old_str = "";
2785 while ($old_str != $a_str) {
2786 $old_str = $a_str;
2787 $a_str = preg_replace("/<\/?\s*$item(\/?)\s*>/i", "", $a_str);
2788 $a_str = preg_replace("/<\/?\s*$item(\/?)\s+([^>]*)>/i", "", $a_str);
2789 }
2790 }
2791 }
2792 }
2793
2794 if ($a_rm_js) {
2795 // remove all attributes if an "on..." attribute is given
2796 $a_str = preg_replace("/<\s*\w*(\/?)(\s+[^>]*)?(\s+on[^>]*)>/i", "", $a_str);
2797
2798 // remove all attributes if a "javascript" is within tag
2799 $a_str = preg_replace("/<\s*\w*(\/?)\s+[^>]*javascript[^>]*>/i", "", $a_str);
2800
2801 // remove all attributes if an "expression" is within tag
2802 // (IE allows something like <b style='width:expression(alert(1))'>test</b>)
2803 $a_str = preg_replace("/<\s*\w*(\/?)\s+[^>]*expression[^>]*>/i", "", $a_str);
2804 }
2805
2806 return $a_str;
2807 }
2808
2820 public static function prepareFormOutput($a_str, $a_strip = false)
2821 {
2822 if ($a_strip) {
2823 $a_str = ilUtil::stripSlashes($a_str);
2824 }
2825 $a_str = htmlspecialchars($a_str);
2826 // Added replacement of curly brackets to prevent
2827 // problems with PEAR templates, because {xyz} will
2828 // be removed as unused template variable
2829 $a_str = str_replace("{", "&#123;", $a_str);
2830 $a_str = str_replace("}", "&#125;", $a_str);
2831 // needed for LaTeX conversion \\ in LaTeX is a line break
2832 // but without this replacement, php changes \\ to \
2833 $a_str = str_replace("\\", "&#92;", $a_str);
2834 return $a_str;
2835 }
2836
2843 public static function secureUrl($url)
2844 {
2845 // check if url is valid (absolute or relative)
2846 if (filter_var($url, FILTER_VALIDATE_URL) === false &&
2847 filter_var("http://" . $url, FILTER_VALIDATE_URL) === false &&
2848 filter_var("http:" . $url, FILTER_VALIDATE_URL) === false &&
2849 filter_var("http://de.de" . $url, FILTER_VALIDATE_URL) === false &&
2850 filter_var("http://de.de/" . $url, FILTER_VALIDATE_URL) === false) {
2851 return "";
2852 }
2853 if (trim(strtolower(parse_url($url, PHP_URL_SCHEME))) == "javascript") {
2854 return "";
2855 }
2856 $url = htmlspecialchars($url, ENT_QUOTES);
2857 return $url;
2858 }
2859
2860
2861
2871 public static function prepareDBString($a_str)
2872 {
2873 return addslashes($a_str);
2874 }
2875
2876
2885 public static function removeItemFromDesktops($a_id)
2886 {
2887 return ilObjUser::_removeItemFromDesktops($a_id);
2888 }
2889
2890
2900 public static function extractParameterString($a_parstr)
2901 {
2902 // parse parameters in array
2903 $par = array();
2904 $ok = true;
2905 while (($spos = strpos($a_parstr, "=")) && $ok) {
2906 // extract parameter
2907 $cpar = substr($a_parstr, 0, $spos);
2908 $a_parstr = substr($a_parstr, $spos, strlen($a_parstr) - $spos);
2909 while (substr($cpar, 0, 1) == "," || substr($cpar, 0, 1) == " " || substr($cpar, 0, 1) == chr(13) || substr($cpar, 0, 1) == chr(10)) {
2910 $cpar = substr($cpar, 1, strlen($cpar) - 1);
2911 }
2912 while (substr($cpar, strlen($cpar) - 1, 1) == " " || substr($cpar, strlen($cpar) - 1, 1) == chr(13) || substr($cpar, strlen($cpar) - 1, 1) == chr(10)) {
2913 $cpar = substr($cpar, 0, strlen($cpar) - 1);
2914 }
2915
2916 // parameter name should only
2917 $cpar_old = "";
2918 while ($cpar != $cpar_old) {
2919 $cpar_old = $cpar;
2920 $cpar = preg_replace("/[^a-zA-Z0-9_]/i", "", $cpar);
2921 }
2922
2923 // extract value
2924 if ($cpar != "") {
2925 if ($spos = strpos($a_parstr, "\"")) {
2926 $a_parstr = substr($a_parstr, $spos + 1, strlen($a_parstr) - $spos);
2927 $spos = strpos($a_parstr, "\"");
2928 if (is_int($spos)) {
2929 $cval = substr($a_parstr, 0, $spos);
2930 $par[$cpar] = $cval;
2931 $a_parstr = substr($a_parstr, $spos + 1, strlen($a_parstr) - $spos - 1);
2932 } else {
2933 $ok = false;
2934 }
2935 } else {
2936 $ok = false;
2937 }
2938 }
2939 }
2940
2941 if ($ok) {
2942 return $par;
2943 } else {
2944 return false;
2945 }
2946 }
2947
2948 public static function assembleParameterString($a_par_arr)
2949 {
2950 if (is_array($a_par_arr)) {
2951 $target_arr = array();
2952 foreach ($a_par_arr as $par => $val) {
2953 $target_arr[] = "$par=\"$val\"";
2954 }
2955 $target_str = implode(", ", $target_arr);
2956 }
2957
2958 return $target_str;
2959 }
2960
2967 public static function dumpString($a_str)
2968 {
2969 $ret = $a_str . ": ";
2970 for ($i = 0; $i < strlen($a_str); $i++) {
2971 $ret .= ord(substr($a_str, $i, 1)) . " ";
2972 }
2973 return $ret;
2974 }
2975
2976
2983 public static function yn2tf($a_yn)
2984 {
2985 if (strtolower($a_yn) == "y") {
2986 return true;
2987 } else {
2988 return false;
2989 }
2990 }
2991
2998 public static function tf2yn($a_tf)
2999 {
3000 if ($a_tf) {
3001 return "y";
3002 } else {
3003 return "n";
3004 }
3005 }
3006
3017 public static function sort_func($a, $b)
3018 {
3019 global $array_sortby,$array_sortorder;
3020
3021 if (!isset($array_sortby)) {
3022 // occured in: setup -> new client -> install languages -> sorting of languages
3023 $array_sortby = 0;
3024 }
3025
3026 // this comparison should give optimal results if
3027 // locale is provided and mb string functions are supported
3028 if ($array_sortorder == "asc") {
3029 return ilStr::strCmp($a[$array_sortby], $b[$array_sortby]);
3030 }
3031
3032 if ($array_sortorder == "desc") {
3033 return !ilStr::strCmp($a[$array_sortby], $b[$array_sortby]);
3034 return strcoll(ilStr::strToUpper($b[$array_sortby]), ilStr::strToUpper($a[$array_sortby]));
3035 }
3036 }
3037
3048 public static function sort_func_numeric($a, $b)
3049 {
3050 global $array_sortby,$array_sortorder;
3051
3052 if ($array_sortorder == "asc") {
3053 return $a["$array_sortby"] > $b["$array_sortby"];
3054 }
3055
3056 if ($array_sortorder == "desc") {
3057 return $a["$array_sortby"] < $b["$array_sortby"];
3058 }
3059 }
3072 public static function sortArray(
3073 $array,
3074 $a_array_sortby,
3075 $a_array_sortorder = 0,
3076 $a_numeric = false,
3077 $a_keep_keys = false
3078 ) {
3079 include_once("./Services/Utilities/classes/class.ilStr.php");
3080
3081 // BEGIN WebDAV: Provide a 'stable' sort algorithm
3082 if (!$a_keep_keys) {
3083 return self::stableSortArray($array, $a_array_sortby, $a_array_sortorder, $a_numeric, $a_keep_keys);
3084 }
3085 // END WebDAV Provide a 'stable' sort algorithm
3086
3087 global $array_sortby,$array_sortorder;
3088 $array_sortby = $a_array_sortby;
3089
3090 if ($a_array_sortorder == "desc") {
3091 $array_sortorder = "desc";
3092 } else {
3093 $array_sortorder = "asc";
3094 }
3095 if ($a_numeric) {
3096 if ($a_keep_keys) {
3097 uasort($array, array("ilUtil", "sort_func_numeric"));
3098 } else {
3099 usort($array, array("ilUtil", "sort_func_numeric"));
3100 }
3101 } else {
3102 if ($a_keep_keys) {
3103 uasort($array, array("ilUtil", "sort_func"));
3104 } else {
3105 usort($array, array("ilUtil", "sort_func"));
3106 }
3107 }
3108 //usort($array,"ilUtil::sort_func");
3109
3110 return $array;
3111 }
3112 // BEGIN WebDAV: Provide a 'stable' sort algorithm
3127 public static function stableSortArray($array, $a_array_sortby, $a_array_sortorder = 0, $a_numeric = false)
3128 {
3129 global $array_sortby,$array_sortorder;
3130
3131 $array_sortby = $a_array_sortby;
3132
3133 if ($a_array_sortorder == "desc") {
3134 $array_sortorder = "desc";
3135 } else {
3136 $array_sortorder = "asc";
3137 }
3138
3139 // Create a copy of the array values for sorting
3140 $sort_array = array_values($array);
3141
3142 if ($a_numeric) {
3143 ilUtil::mergesort($sort_array, array("ilUtil", "sort_func_numeric"));
3144 } else {
3145 ilUtil::mergesort($sort_array, array("ilUtil", "sort_func"));
3146 }
3147
3148 return $sort_array;
3149 }
3150 public static function mergesort(&$array, $cmp_function = 'strcmp')
3151 {
3152 // Arrays of size < 2 require no action.
3153 if (count($array) < 2) {
3154 return;
3155 }
3156
3157 // Split the array in half
3158 $halfway = count($array) / 2;
3159 $array1 = array_slice($array, 0, $halfway);
3160 $array2 = array_slice($array, $halfway);
3161
3162 // Recurse to sort the two halves
3163 ilUtil::mergesort($array1, $cmp_function);
3164 ilUtil::mergesort($array2, $cmp_function);
3165
3166 // If all of $array1 is <= all of $array2, just append them.
3167 if (call_user_func($cmp_function, end($array1), $array2[0]) < 1) {
3168 $array = array_merge($array1, $array2);
3169 return;
3170 }
3171
3172 // Merge the two sorted arrays into a single sorted array
3173 $array = array();
3174 $ptr1 = $ptr2 = 0;
3175 while ($ptr1 < count($array1) && $ptr2 < count($array2)) {
3176 if (call_user_func($cmp_function, $array1[$ptr1], $array2[$ptr2]) < 1) {
3177 $array[] = $array1[$ptr1++];
3178 } else {
3179 $array[] = $array2[$ptr2++];
3180 }
3181 }
3182
3183 // Merge the remainder
3184 while ($ptr1 < count($array1)) {
3185 $array[] = $array1[$ptr1++];
3186 }
3187 while ($ptr2 < count($array2)) {
3188 $array[] = $array2[$ptr2++];
3189 }
3190
3191 return;
3192 }
3193 // END WebDAV: Provide a 'stable' sort algorithm
3194
3206 public static function unique_multi_array($array, $sub_key)
3207 {
3208 $target = array();
3209 $existing_sub_key_values = array();
3210
3211 foreach ($array as $key => $sub_array) {
3212 if (!in_array($sub_array[$sub_key], $existing_sub_key_values)) {
3213 $existing_sub_key_values[] = $sub_array[$sub_key];
3214 $target[$key] = $sub_array;
3215 }
3216 }
3217
3218 return $target;
3219 }
3220
3221
3231 public static function getGDSupportedImageType($a_desired_type)
3232 {
3233 $a_desired_type = strtolower($a_desired_type);
3234 // get supported Image Types
3235 $im_types = ImageTypes();
3236
3237 switch ($a_desired_type) {
3238 case "jpg":
3239 case "jpeg":
3240 if ($im_types & IMG_JPG) {
3241 return "jpg";
3242 }
3243 if ($im_types & IMG_GIF) {
3244 return "gif";
3245 }
3246 if ($im_types & IMG_PNG) {
3247 return "png";
3248 }
3249 break;
3250
3251 case "gif":
3252 if ($im_types & IMG_GIF) {
3253 return "gif";
3254 }
3255 if ($im_types & IMG_JPG) {
3256 return "jpg";
3257 }
3258 if ($im_types & IMG_PNG) {
3259 return "png";
3260 }
3261 break;
3262
3263 case "png":
3264 if ($im_types & IMG_PNG) {
3265 return "png";
3266 }
3267 if ($im_types & IMG_JPG) {
3268 return "jpg";
3269 }
3270 if ($im_types & IMG_GIF) {
3271 return "gif";
3272 }
3273 break;
3274
3275 case "svg":
3276 if ($im_types & IMG_PNG) {
3277 return "png";
3278 }
3279 if ($im_types & IMG_JPG) {
3280 return "jpg";
3281 }
3282 if ($im_types & IMG_GIF) {
3283 return "gif";
3284 }
3285 break;
3286 }
3287
3288 return "";
3289 }
3290
3300 public static function deducibleSize($a_mime)
3301 {
3302 if (($a_mime == "image/gif") || ($a_mime == "image/jpeg") ||
3303 ($a_mime == "image/png") || ($a_mime == "application/x-shockwave-flash") ||
3304 ($a_mime == "image/tiff") || ($a_mime == "image/x-ms-bmp") ||
3305 ($a_mime == "image/psd") || ($a_mime == "image/iff")) {
3306 return true;
3307 } else {
3308 return false;
3309 }
3310 }
3311
3312
3318 public static function redirect($a_script)
3319 {
3320 global $DIC;
3321
3322 if (!isset($DIC['ilCtrl']) || !$DIC['ilCtrl'] instanceof ilCtrl) {
3323 $ctrl = new ilCtrl();
3324 } else {
3325 $ctrl = $DIC->ctrl();
3326 }
3327 $ctrl->redirectToURL($a_script);
3328 }
3329
3338 public static function insertInstIntoID($a_value)
3339 {
3340 if (substr($a_value, 0, 4) == "il__") {
3341 $a_value = "il_" . IL_INST_ID . "_" . substr($a_value, 4, strlen($a_value) - 4);
3342 }
3343
3344 return $a_value;
3345 }
3346
3357 public static function groupNameExists($a_group_name, $a_id = 0)
3358 {
3359 global $DIC;
3360
3361 $ilDB = $DIC->database();
3362
3363 $ilErr = null;
3364 if (isset($DIC["ilErr"])) {
3365 $ilErr = $DIC["ilErr"];
3366 }
3367
3368 if (empty($a_group_name)) {
3369 $message = __METHOD__ . ": No groupname given!";
3370 $ilErr->raiseError($message, $ilErr->WARNING);
3371 }
3372
3373 $clause = ($a_id) ? " AND obj_id != " . $ilDB->quote($a_id) . " " : "";
3374
3375 $q = "SELECT obj_id FROM object_data " .
3376 "WHERE title = " . $ilDB->quote($a_group_name, "text") . " " .
3377 "AND type = " . $ilDB->quote("grp", "text") .
3378 $clause;
3379
3380 $r = $ilDB->query($q);
3381
3382 if ($r->numRows()) {
3383 return true;
3384 } else {
3385 return false;
3386 }
3387 }
3388
3395 public static function getMemString()
3396 {
3397 $my_pid = getmypid();
3398 return ("MEMORY USAGE (% KB PID ): " . `ps -eo%mem,rss,pid | grep $my_pid`);
3399 }
3400
3407 public static function isWindows()
3408 {
3409 if (strtolower(substr(php_uname(), 0, 3)) == "win") {
3410 return true;
3411 }
3412 return false;
3413 }
3414
3415
3416 public static function escapeShellArg($a_arg)
3417 {
3418 setlocale(LC_CTYPE, "UTF8", "en_US.UTF-8"); // fix for PHP escapeshellcmd bug. See: http://bugs.php.net/bug.php?id=45132
3419 // see also ilias bug 5630
3420 return escapeshellarg($a_arg);
3421 }
3422
3432 public static function escapeShellCmd($a_arg)
3433 {
3434 if (ini_get('safe_mode') == 1) {
3435 return $a_arg;
3436 }
3437 setlocale(LC_CTYPE, "UTF8", "en_US.UTF-8"); // fix for PHP escapeshellcmd bug. See: http://bugs.php.net/bug.php?id=45132
3438 return escapeshellcmd($a_arg);
3439 }
3440
3450 public static function execQuoted($cmd, $args = null)
3451 {
3452 global $DIC;
3453
3454 if (ilUtil::isWindows() && strpos($cmd, " ") !== false && substr($cmd, 0, 1) !== '"') {
3455 // cmd won't work without quotes
3456 $cmd = '"' . $cmd . '"';
3457 if ($args) {
3458 // args are also quoted, workaround is to quote the whole command AGAIN
3459 // was fixed in php 5.2 (see php bug #25361)
3460 if (version_compare(phpversion(), "5.2", "<") && strpos($args, '"') !== false) {
3461 $cmd = '"' . $cmd . " " . $args . '"';
3462 }
3463 // args are not quoted or php is fixed, just append
3464 else {
3465 $cmd .= " " . $args;
3466 }
3467 }
3468 }
3469 // nothing todo, just append args
3470 elseif ($args) {
3471 $cmd .= " " . $args;
3472 }
3473 exec($cmd, $arr);
3474
3475 $DIC->logger()->root()->debug("ilUtil::execQuoted: " . $cmd . ".");
3476
3477 return $arr;
3478 }
3479
3502 public static function excelTime($year = "", $month = "", $day = "", $hour = "", $minute = "", $second = "")
3503 {
3504 $starting_time = mktime(0, 0, 0, 1, 2, 1970);
3505 if (strcmp("$year$month$day$hour$minute$second", "") == 0) {
3506 $target_time = time();
3507 } else {
3508 if ($year < 1970) {
3509 return 0;
3510 }
3511 }
3512 $target_time = mktime($hour, $minute, $second, $month, $day, $year);
3513 $difference = $target_time - $starting_time;
3514 $days = (($difference - ($difference % 86400)) / 86400);
3515 $difference = $difference - ($days * 86400) + 3600;
3516
3517 // #15343 - using a global locale leads to , instead of . for (implicit) floats
3518 return str_replace(",", ".", ($days + 25570 + ($difference / 86400)));
3519 }
3520
3527 public static function renameExecutables($a_dir)
3528 {
3529 $def_arr = explode(",", SUFFIX_REPL_DEFAULT);
3530 foreach ($def_arr as $def) {
3531 ilUtil::rRenameSuffix($a_dir, trim($def), "sec");
3532 }
3533
3534 $def_arr = explode(",", SUFFIX_REPL_ADDITIONAL);
3535 foreach ($def_arr as $def) {
3536 ilUtil::rRenameSuffix($a_dir, trim($def), "sec");
3537 }
3538 }
3539
3544 public static function getSafeFilename($a_initial_filename)
3545 {
3546 $file_peaces = explode('.', $a_initial_filename);
3547
3548 $file_extension = array_pop($file_peaces);
3549
3550 if (SUFFIX_REPL_ADDITIONAL) {
3551 $string_extensions = SUFFIX_REPL_DEFAULT . "," . SUFFIX_REPL_ADDITIONAL;
3552 } else {
3553 $string_extensions = SUFFIX_REPL_DEFAULT;
3554 }
3555
3556 $sufixes = explode(",", $string_extensions);
3557
3558 if (in_array($file_extension, $sufixes)) {
3559 $file_extension = "sec";
3560 }
3561
3562 array_push($file_peaces, $file_extension);
3563
3564 $safe_filename = "";
3565 foreach ($file_peaces as $piece) {
3566 $safe_filename .= "$piece";
3567 if ($piece != end($file_peaces)) {
3568 $safe_filename .= ".";
3569 }
3570 }
3571
3572 return $safe_filename;
3573 }
3574
3587 public static function rRenameSuffix($a_dir, $a_old_suffix, $a_new_suffix)
3588 {
3589 if ($a_dir == "/" || $a_dir == "" || is_int(strpos($a_dir, ".."))
3590 || trim($a_old_suffix) == "") {
3591 return false;
3592 }
3593
3594 // check if argument is directory
3595 if (!@is_dir($a_dir)) {
3596 return false;
3597 }
3598
3599 // read a_dir
3600 $dir = opendir($a_dir);
3601
3602 while ($file = readdir($dir)) {
3603 if ($file != "." and
3604 $file != "..") {
3605 // directories
3606 if (@is_dir($a_dir . "/" . $file)) {
3607 ilUtil::rRenameSuffix($a_dir . "/" . $file, $a_old_suffix, $a_new_suffix);
3608 }
3609
3610 // files
3611 if (@is_file($a_dir . "/" . $file)) {
3612 // first check for files with trailing dot
3613 if (strrpos($file, '.') == (strlen($file) - 1)) {
3614 rename($a_dir . '/' . $file, substr($a_dir . '/' . $file, 0, -1));
3615 $file = substr($file, 0, -1);
3616 }
3617
3618 $path_info = pathinfo($a_dir . "/" . $file);
3619
3620 if (strtolower($path_info["extension"]) ==
3621 strtolower($a_old_suffix)) {
3622 $pos = strrpos($a_dir . "/" . $file, ".");
3623 $new_name = substr($a_dir . "/" . $file, 0, $pos) . "." . $a_new_suffix;
3624 rename($a_dir . "/" . $file, $new_name);
3625 }
3626 }
3627 }
3628 }
3629 return true;
3630 }
3631
3632 public static function isAPICall()
3633 {
3634 return strpos($_SERVER["SCRIPT_FILENAME"], "api") !== false ||
3635 strpos($_SERVER["SCRIPT_FILENAME"], "dummy") !== false;
3636 }
3637
3638 public static function KT_replaceParam($qstring, $paramName, $paramValue)
3639 {
3640 if (preg_match("/&" . $paramName . "=/", $qstring)) {
3641 return preg_replace("/&" . $paramName . "=[^&]+/", "&" . $paramName . "=" . urlencode($paramValue), $qstring);
3642 } else {
3643 return $qstring . "&" . $paramName . "=" . urlencode($paramValue);
3644 }
3645 }
3646
3647 public static function replaceUrlParameterString($url, $parametersArray)
3648 {
3649 foreach ($parametersArray as $paramName => $paramValue) {
3650 $url = ilUtil::KT_replaceParam($url, $paramName, $paramValue);
3651 }
3652 return $url;
3653 }
3654
3661 public static function generatePasswords($a_number)
3662 {
3663 $ret = array();
3664 srand((double) microtime() * 1000000);
3665
3666 include_once('./Services/PrivacySecurity/classes/class.ilSecuritySettings.php');
3667 $security = ilSecuritySettings::_getInstance();
3668
3669 for ($i = 1; $i <= $a_number; $i++) {
3670 $min = ($security->getPasswordMinLength() > 0)
3671 ? $security->getPasswordMinLength()
3672 : 6;
3673 $max = ($security->getPasswordMaxLength() > 0)
3674 ? $security->getPasswordMaxLength()
3675 : 10;
3676 if ($min > $max) {
3677 $max = $max + 1;
3678 }
3679 $random = new \ilRandom();
3680 $length = $random->int($min, $max);
3681 $next = $random->int(1, 2);
3682 $vowels = "aeiou";
3683 $vowels_uc = strtoupper($vowels);
3684 $consonants = "bcdfghjklmnpqrstvwxyz";
3685 $consonants_uc = strtoupper($consonants);
3686 $numbers = "1234567890";
3687 $special = "_.+?#-*@!$%~";
3688 $pw = "";
3689
3690 if ($security->getPasswordNumberOfUppercaseChars() > 0) {
3691 for ($j = 0; $j < $security->getPasswordNumberOfUppercaseChars(); $j++) {
3692 switch ($next) {
3693 case 1:
3694 $pw.= $consonants_uc[$random->int(0, strlen($consonants_uc) - 1)];
3695 $next = 2;
3696 break;
3697
3698 case 2:
3699 $pw.= $vowels_uc[$random->int(0, strlen($vowels_uc) - 1)];
3700 $next = 1;
3701 break;
3702 }
3703 }
3704 }
3705
3706 if ($security->isPasswordCharsAndNumbersEnabled()) {
3707 $pw.= $numbers[$random->int(0, strlen($numbers) - 1)];
3708 }
3709
3710 if ($security->isPasswordSpecialCharsEnabled()) {
3711 $pw.= $special[$random->int(0, strlen($special) - 1)];
3712 }
3713
3714 $num_lcase_chars = max($security->getPasswordNumberOfLowercaseChars(), $length - strlen($pw));
3715 for ($j = 0; $j < $num_lcase_chars; $j++) {
3716 switch ($next) {
3717 case 1:
3718 $pw.= $consonants[$random->int(0, strlen($consonants) - 1)];
3719 $next = 2;
3720 break;
3721
3722 case 2:
3723 $pw.= $vowels[$random->int(0, strlen($vowels) - 1)];
3724 $next = 1;
3725 break;
3726 }
3727 }
3728
3729 $pw = str_shuffle($pw);
3730
3731 $ret[] = $pw;
3732 }
3733 return $ret;
3734 }
3735
3736 public static function removeTrailingPathSeparators($path)
3737 {
3738 $path = preg_replace("/[\/\\\]+$/", "", $path);
3739 return $path;
3740 }
3741
3752 public static function array_php2js($data)
3753 {
3754 if (empty($data)) {
3755 $data = array();
3756 }
3757
3758 foreach ($data as $k => $datum) {
3759 if (is_null($datum)) {
3760 $data[$k] = 'null';
3761 }
3762 if (is_string($datum)) {
3763 $data[$k] = "'" . $datum . "'";
3764 }
3765 if (is_array($datum)) {
3766 $data[$k] = array_php2js($datum);
3767 }
3768 }
3769
3770 return "[" . implode(', ', $data) . "]";
3771 }
3772
3779 public static function virusHandling($a_file, $a_orig_name = "", $a_clean = true)
3780 {
3781 global $DIC;
3782
3783 $lng = $DIC->language();
3784
3785 if (IL_VIRUS_SCANNER != "None") {
3786 require_once("./Services/VirusScanner/classes/class.ilVirusScannerFactory.php");
3787 $vs = ilVirusScannerFactory::_getInstance();
3788 if (($vs_txt = $vs->scanFile($a_file, $a_orig_name)) != "") {
3789 if ($a_clean && (IL_VIRUS_CLEAN_COMMAND != "")) {
3790 $clean_txt = $vs->cleanFile($a_file, $a_orig_name);
3791 if ($vs->fileCleaned()) {
3792 $vs_txt .= "<br />" . $lng->txt("cleaned_file") .
3793 "<br />" . $clean_txt;
3794 $vs_txt .= "<br />" . $lng->txt("repeat_scan");
3795 if (($vs2_txt = $vs->scanFile($a_file, $a_orig_name)) != "") {
3796 return array(false, nl2br($vs_txt) . "<br />" . $lng->txt("repeat_scan_failed") .
3797 "<br />" . nl2br($vs2_txt));
3798 } else {
3799 return array(true, nl2br($vs_txt) . "<br />" . $lng->txt("repeat_scan_succeded"));
3800 }
3801 } else {
3802 return array(false, nl2br($vs_txt) . "<br />" . $lng->txt("cleaning_failed"));
3803 }
3804 } else {
3805 return array(false, nl2br($vs_txt));
3806 }
3807 }
3808 }
3809
3810 return array(true,"");
3811 }
3812
3813
3833 public static function moveUploadedFile($a_file, $a_name, $a_target, $a_raise_errors = true, $a_mode = "move_uploaded")
3834 {
3835 global $DIC;
3836 $targetFilename = basename($a_target);
3837
3838 include_once("./Services/Utilities/classes/class.ilFileUtils.php");
3839 $targetFilename = ilFileUtils::getValidFilename($targetFilename);
3840
3841 // Make sure the target is in a valid subfolder. (e.g. no uploads to ilias/setup/....)
3842 list($targetFilesystem, $targetDir) = self::sanitateTargetPath($a_target);
3843
3844 $upload = $DIC->upload();
3845
3846 // If the upload has not yet been processed make sure he gets processed now.
3847 if (!$upload->hasBeenProcessed()) {
3848 $upload->process();
3849 }
3850
3851 try {
3852 if (!$upload->hasUploads()) {
3853 throw new ilException($DIC->language()->txt("upload_error_file_not_found"));
3854 }
3858 $UploadResult = $upload->getResults()[$a_file];
3859 $ProcessingStatus = $UploadResult->getStatus();
3860 if ($ProcessingStatus->getCode() === ProcessingStatus::REJECTED) {
3861 throw new ilException($ProcessingStatus->getMessage());
3862 }
3863 } catch (ilException $e) {
3864 if ($a_raise_errors) {
3865 throw $e;
3866 } else {
3867 ilUtil::sendFailure($e->getMessage(), true);
3868 }
3869
3870 return false;
3871 }
3872
3873 $upload->moveOneFileTo($UploadResult, $targetDir, $targetFilesystem, $targetFilename, true);
3874
3875 return true;
3876 }
3877
3878
3885 public static function date_mysql2time($mysql_date_time)
3886 {
3887 list($datum, $uhrzeit) = explode(" ", $mysql_date_time);
3888 list($jahr, $monat, $tag) = explode("-", $datum);
3889 list($std, $min, $sec) = explode(":", $uhrzeit);
3890 return mktime((int) $std, (int) $min, (int) $sec, (int) $monat, (int) $tag, (int) $jahr);
3891 }
3892
3899 public static function now()
3900 {
3901 return date("Y-m-d H:i:s");
3902 }
3903
3919 public static function &processCSVRow(&$row, $quoteAll = false, $separator = ";", $outUTF8 = false, $compatibleWithMSExcel = true)
3920 {
3921 $resultarray = array();
3922 foreach ($row as $rowindex => $entry) {
3923 $surround = false;
3924 if ($quoteAll) {
3925 $surround = true;
3926 }
3927 if (strpos($entry, "\"") !== false) {
3928 $entry = str_replace("\"", "\"\"", $entry);
3929 $surround = true;
3930 }
3931 if (strpos($entry, $separator) !== false) {
3932 $surround = true;
3933 }
3934 if ($compatibleWithMSExcel) {
3935 // replace all CR LF with LF (for Excel for Windows compatibility
3936 $entry = str_replace(chr(13) . chr(10), chr(10), $entry);
3937 }
3938 if ($surround) {
3939 if ($outUTF8) {
3940 $resultarray[$rowindex] = "\"" . $entry . "\"";
3941 } else {
3942 $resultarray[$rowindex] = utf8_decode("\"" . $entry . "\"");
3943 }
3944 } else {
3945 if ($outUTF8) {
3946 $resultarray[$rowindex] = $entry;
3947 } else {
3948 $resultarray[$rowindex] = utf8_decode($entry);
3949 }
3950 }
3951 }
3952 return $resultarray;
3953 }
3954
3955 // validates a domain name (example: www.ilias.de)
3956 public static function isDN($a_str)
3957 {
3958 return(preg_match("/^[a-z]+([a-z0-9-]*[a-z0-9]+)?(\.([a-z]+([a-z0-9-]*[a-z0-9]+)?)+)*$/", $a_str));
3959 }
3960
3961 // validates an IP address (example: 192.168.1.1)
3962 public static function isIPv4($a_str)
3963 {
3964 return(preg_match("/^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\." .
3965 "(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$/", $a_str));
3966 }
3967
3968
3997 public static function _getObjectsByOperations($a_obj_type, $a_operation, $a_usr_id = 0, $limit = 0)
3998 {
3999 global $DIC;
4000
4001 $ilDB = $DIC->database();
4002 $rbacreview = $DIC->rbac()->review();
4003 $ilAccess = $DIC->access();
4004 $ilUser = $DIC->user();
4005 $ilSetting = $DIC->settings();
4006 $tree = $DIC->repositoryTree();
4007
4008 if (!is_array($a_obj_type)) {
4009 $where = "WHERE type = " . $ilDB->quote($a_obj_type, "text") . " ";
4010 } else {
4011 $where = "WHERE " . $ilDB->in("type", $a_obj_type, false, "text") . " ";
4012 }
4013
4014 // limit number of results default is search result limit
4015 if (!$limit) {
4016 $limit = $ilSetting->get('search_max_hits', 100);
4017 }
4018 if ($limit == -1) {
4019 $limit = 10000;
4020 }
4021
4022 // default to logged in usr
4023 $a_usr_id = $a_usr_id ? $a_usr_id : $ilUser->getId();
4024 $a_roles = $rbacreview->assignedRoles($a_usr_id);
4025
4026 // Since no rbac_pa entries are available for the system role. This function returns !all! ref_ids in the case the user
4027 // is assigned to the system role
4028 if ($rbacreview->isAssigned($a_usr_id, SYSTEM_ROLE_ID)) {
4029 $query = "SELECT ref_id FROM object_reference obr LEFT JOIN object_data obd ON obr.obj_id = obd.obj_id " .
4030 "LEFT JOIN tree ON obr.ref_id = tree.child " .
4031 $where .
4032 "AND tree = 1";
4033
4034 $res = $ilDB->query($query);
4035 $counter = 0;
4036 while ($row = $ilDB->fetchObject($res)) {
4037 // Filter recovery folder
4038 if ($tree->isGrandChild(RECOVERY_FOLDER_ID, $row->ref_id)) {
4039 continue;
4040 }
4041
4042 if ($counter++ >= $limit) {
4043 break;
4044 }
4045
4046 $ref_ids[] = $row->ref_id;
4047 }
4048 return $ref_ids ? $ref_ids : array();
4049 } // End Administrators
4050
4051 // Check ownership if it is not asked for edit_permission or a create permission
4052 if ($a_operation == 'edit_permissions' or strpos($a_operation, 'create') !== false) {
4053 $check_owner = ") ";
4054 } else {
4055 $check_owner = "OR owner = " . $ilDB->quote($a_usr_id, "integer") . ") ";
4056 }
4057
4058 $ops_ids = ilRbacReview::_getOperationIdsByName(array($a_operation));
4059 $ops_id = $ops_ids[0];
4060
4061 $and = "AND ((" . $ilDB->in("rol_id", $a_roles, false, "integer") . " ";
4062
4063 $query = "SELECT DISTINCT(obr.ref_id),obr.obj_id,type FROM object_reference obr " .
4064 "JOIN object_data obd ON obd.obj_id = obr.obj_id " .
4065 "LEFT JOIN rbac_pa ON obr.ref_id = rbac_pa.ref_id " .
4066 $where .
4067 $and .
4068 "AND (" . $ilDB->like("ops_id", "text", "%i:" . $ops_id . "%") . " " .
4069 "OR " . $ilDB->like("ops_id", "text", "%:\"" . $ops_id . "\";%") . ")) " .
4070 $check_owner;
4071
4072 $res = $ilDB->query($query);
4073 $counter = 0;
4074 while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
4075 if ($counter >= $limit) {
4076 break;
4077 }
4078
4079 // Filter objects in recovery folder
4080 if ($tree->isGrandChild(RECOVERY_FOLDER_ID, $row->ref_id)) {
4081 continue;
4082 }
4083
4084 // Check deleted, hierarchical access ...
4085 if ($ilAccess->checkAccessOfUser($a_usr_id, $a_operation, '', $row->ref_id, $row->type, $row->obj_id)) {
4086 $counter++;
4087 $ref_ids[] = $row->ref_id;
4088 }
4089 }
4090 return $ref_ids ? $ref_ids : array();
4091 }
4092
4093
4099 protected static function sanitateTargetPath($a_target)
4100 {
4101 switch (true) {
4102 case strpos($a_target, ILIAS_WEB_DIR . '/' . CLIENT_ID) === 0:
4103 case strpos($a_target, './' . ILIAS_WEB_DIR . '/' . CLIENT_ID) === 0:
4104 case strpos($a_target, CLIENT_WEB_DIR) === 0:
4105 $targetFilesystem = \ILIAS\FileUpload\Location::WEB;
4106 break;
4107 case strpos($a_target, CLIENT_DATA_DIR . "/temp") === 0:
4108 $targetFilesystem = \ILIAS\FileUpload\Location::TEMPORARY;
4109 break;
4110 case strpos($a_target, CLIENT_DATA_DIR) === 0:
4111 $targetFilesystem = \ILIAS\FileUpload\Location::STORAGE;
4112 break;
4113 case strpos($a_target, ILIAS_ABSOLUTE_PATH . '/Customizing') === 0:
4114 $targetFilesystem = \ILIAS\FileUpload\Location::CUSTOMIZING;
4115 break;
4116 default:
4117 throw new InvalidArgumentException("Can not move files to \"$a_target\" because path can not be mapped to web, storage or customizing location.");
4118 }
4119
4120 $absTargetDir = dirname($a_target);
4121 $targetDir = LegacyPathHelper::createRelativePath($absTargetDir);
4122
4123 return array( $targetFilesystem, $targetDir );
4124 }
4125
4126
4131 public function includeMathjax($a_tpl = null)
4132 {
4133 include_once './Services/MathJax/classes/class.ilMathJax.php';
4134 ilMathJax::getInstance()->includeMathJax($a_tpl);
4135 }
4136
4141 public static function insertLatexImages($a_text, $a_start = '[tex]', $a_end = '[/tex]')
4142 {
4143 include_once './Services/MathJax/classes/class.ilMathJax.php';
4144 return ilMathJax::getInstance()->insertLatexImages($a_text, $a_start, $a_end);
4145 }
4146
4151 public static function buildLatexImages($a_text, $a_dir)
4152 {
4153 include_once './Services/MathJax/classes/class.ilMathJax.php';
4154 return ilMathJax::getInstance()->insertLatexImages($a_text, '[tex]', '[/tex]', $a_dir . '/teximg', './teximg');
4155 }
4156
4165 public static function prepareTextareaOutput($txt_output, $prepare_for_latex_output = false, $omitNl2BrWhenTextArea = false)
4166 {
4167 $result = $txt_output;
4168 $is_html = self::isHTML($result);
4169
4170 // removed: did not work with magic_quotes_gpc = On
4171 if (!$is_html) {
4172 if (!$omitNl2BrWhenTextArea) {
4173 // if the string does not contain HTML code, replace the newlines with HTML line breaks
4174 $result = preg_replace("/[\n]/", "<br />", $result);
4175 }
4176 } else {
4177 // patch for problems with the <pre> tags in tinyMCE
4178 if (preg_match_all("/(<pre>.*?<\/pre>)/ims", $result, $matches)) {
4179 foreach ($matches[0] as $found) {
4180 $replacement = "";
4181 if (strpos("\n", $found) === false) {
4182 $replacement = "\n";
4183 }
4184 $removed = preg_replace("/<br\s*?\/>/ims", $replacement, $found);
4185 $result = str_replace($found, $removed, $result);
4186 }
4187 }
4188 }
4189
4190 // since server side mathjax rendering does include svg-xml structures that indeed have linebreaks,
4191 // do latex conversion AFTER replacing linebreaks with <br>. <svg> tag MUST NOT contain any <br> tags.
4192 if ($prepare_for_latex_output) {
4193 include_once './Services/MathJax/classes/class.ilMathJax.php';
4194 $result = ilMathJax::getInstance()->insertLatexImages($result, "<span class\=\"latex\">", "<\/span>");
4195 $result = ilMathJax::getInstance()->insertLatexImages($result, "\[tex\]", "\[\/tex\]");
4196 }
4197
4198 if ($prepare_for_latex_output) {
4199 // replace special characters to prevent problems with the ILIAS template system
4200 // eg. if someone uses {1} as an answer, nothing will be shown without the replacement
4201 $result = str_replace("{", "&#123;", $result);
4202 $result = str_replace("}", "&#125;", $result);
4203 $result = str_replace("\\", "&#92;", $result);
4204 }
4205
4206 return $result;
4207 }
4208
4217 public static function isHTML($a_text)
4218 {
4219 if (strlen(strip_tags($a_text)) < strlen($a_text)) {
4220 return true;
4221 }
4222
4223 return false;
4224 }
4225
4235 public static function period2String(ilDateTime $a_from, $a_to = null)
4236 {
4237 global $DIC;
4238
4239 $lng = $DIC->language();
4240
4241 if (!$a_to) {
4242 $a_to = new ilDateTime(time(), IL_CAL_UNIX);
4243 }
4244
4245 $from = new DateTime($a_from->get(IL_CAL_DATETIME));
4246 $to = new DateTime($a_to->get(IL_CAL_DATETIME));
4247 $diff = $to->diff($from);
4248
4249 $periods = array();
4250 $periods["years"] = $diff->format("%y");
4251 $periods["months"] = $diff->format("%m");
4252 $periods["days"] = $diff->format("%d");
4253 $periods["hours"] = $diff->format("%h");
4254 $periods["minutes"] = $diff->format("%i");
4255 $periods["seconds"] = $diff->format("%s");
4256
4257 if (!array_sum($periods)) {
4258 return;
4259 }
4260
4261 foreach ($periods as $key => $value) {
4262 if ($value) {
4263 $segment_name = ($value > 1)
4264 ? $key
4265 : substr($key, 0, -1);
4266 $array[] = $value . ' ' . $lng->txt($segment_name);
4267 }
4268 }
4269
4270 $len = sizeof($array);
4271 if ($len > 3) {
4272 $array = array_slice($array, 0, (3 - $len));
4273 }
4274
4275 return implode(', ', $array);
4276 }
4277
4278 public static function getFileSizeInfo()
4279 {
4280 $max_filesize = self::formatBytes(
4281 self::getUploadSizeLimitBytes()
4282 );
4283
4284 global $DIC;
4285
4286 $lng = $DIC->language();
4287 /*
4288 // get the value for the maximal uploadable filesize from the php.ini (if available)
4289 $umf=get_cfg_var("upload_max_filesize");
4290 // get the value for the maximal post data from the php.ini (if available)
4291 $pms=get_cfg_var("post_max_size");
4292
4293 // use the smaller one as limit
4294 $max_filesize=min($umf, $pms);
4295 if (!$max_filesize) $max_filesize=max($umf, $pms);
4296 */
4297 return $lng->txt("file_notice") . " $max_filesize.";
4298 }
4299
4300 public static function formatBytes($size, $decimals = 0)
4301 {
4302 $unit = array('', 'K', 'M', 'G', 'T', 'P');
4303
4304 for ($i = 0, $maxUnits = count($unit); $size >= 1024 && $i <= $maxUnits; $i++) {
4305 $size /= 1024;
4306 }
4307
4308 return round($size, $decimals) . $unit[$i];
4309 }
4310
4311 public static function getUploadSizeLimitBytes()
4312 {
4313 $uploadSizeLimitBytes = min(
4314 self::convertPhpIniSizeValueToBytes(ini_get('post_max_size')),
4315 self::convertPhpIniSizeValueToBytes(ini_get('upload_max_filesize'))
4316 );
4317
4318 return $uploadSizeLimitBytes;
4319 }
4320
4321 public static function convertPhpIniSizeValueToBytes($phpIniSizeValue)
4322 {
4323 if (is_numeric($phpIniSizeValue)) {
4324 return $phpIniSizeValue;
4325 }
4326
4327 $suffix = substr($phpIniSizeValue, -1);
4328 $value = substr($phpIniSizeValue, 0, -1);
4329
4330 switch (strtoupper($suffix)) {
4331 case 'P':
4332 $value *= 1024;
4333 // no break
4334 case 'T':
4335 $value *= 1024;
4336 // no break
4337 case 'G':
4338 $value *= 1024;
4339 // no break
4340 case 'M':
4341 $value *= 1024;
4342 // no break
4343 case 'K':
4344 $value *= 1024;
4345 break;
4346 }
4347
4348 return $value;
4349 }
4350
4359 public static function __extractRefId($role_title)
4360 {
4361 $test_str = explode('_', $role_title);
4362
4363 if ($test_str[0] == 'il') {
4364 $test2 = (int) $test_str[3];
4365 return is_numeric($test2) ? (int) $test2 : false;
4366 }
4367 return false;
4368 }
4369
4380 public static function __extractId($ilias_id, $inst_id)
4381 {
4382 $test_str = explode('_', $ilias_id);
4383
4384 if ($test_str[0] == 'il' && $test_str[1] == $inst_id && count($test_str) == 4) {
4385 $test2 = (int) $test_str[3];
4386 return is_numeric($test2) ? (int) $test2 : false;
4387 }
4388 return false;
4389 }
4390
4405 public static function _sortIds($a_ids, $a_table, $a_field, $a_id_name)
4406 {
4407 global $DIC;
4408
4409 $ilDB = $DIC->database();
4410
4411 if (!$a_ids) {
4412 return array();
4413 }
4414
4415 // use database to sort user array
4416 $where = "WHERE " . $a_id_name . " IN (";
4417 $where .= implode(",", ilUtil::quoteArray($a_ids));
4418 $where .= ") ";
4419
4420 $query = "SELECT " . $a_id_name . " FROM " . $a_table . " " .
4421 $where .
4422 "ORDER BY " . $a_field;
4423
4424 $res = $ilDB->query($query);
4425 while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
4426 $ids[] = $row->$a_id_name;
4427 }
4428 return $ids ? $ids : array();
4429 }
4430
4440 public static function getMySQLTimestamp($a_ts)
4441 {
4442 global $DIC;
4443
4444 $ilDB = $DIC->database();
4445
4446 return $a_ts;
4447 }
4448
4455 public static function quoteArray($a_array)
4456 {
4457 global $DIC;
4458
4459 $ilDB = $DIC->database();
4460
4461
4462 if (!is_array($a_array) or !count($a_array)) {
4463 return array("''");
4464 }
4465
4466 foreach ($a_array as $k => $item) {
4467 $a_array[$k] = $ilDB->quote($item);
4468 }
4469
4470 return $a_array;
4471 }
4472
4481 public static function sendInfo($a_info = "", $a_keep = false)
4482 {
4483 global $DIC;
4484
4485 $tpl = $DIC["tpl"];
4486 $tpl->setMessage("info", $a_info, $a_keep);
4487 }
4488
4497 public static function sendFailure($a_info = "", $a_keep = false)
4498 {
4499 global $DIC;
4500
4501 if (isset($DIC["tpl"])) {
4502 $tpl = $DIC["tpl"];
4503 $tpl->setMessage("failure", $a_info, $a_keep);
4504 }
4505 }
4506
4513 public static function sendQuestion($a_info = "", $a_keep = false)
4514 {
4515 global $DIC;
4516
4517 $tpl = $DIC["tpl"];
4518 $tpl->setMessage("question", $a_info, $a_keep);
4519 }
4520
4529 public static function sendSuccess($a_info = "", $a_keep = false)
4530 {
4531 global $DIC;
4532
4534 $tpl = $DIC["tpl"];
4535 $tpl->setMessage("success", $a_info, $a_keep);
4536 }
4537
4538 public static function infoPanel($a_keep = true)
4539 {
4540 global $DIC;
4541
4542 $tpl = $DIC["tpl"];
4543 $lng = $DIC->language();
4544 $ilUser = $DIC->user();
4545
4546 if (!empty($_SESSION["infopanel"]) and is_array($_SESSION["infopanel"])) {
4547 $tpl->addBlockFile(
4548 "INFOPANEL",
4549 "infopanel",
4550 "tpl.infopanel.html",
4551 "Services/Utilities"
4552 );
4553 $tpl->setCurrentBlock("infopanel");
4554
4555 if (!empty($_SESSION["infopanel"]["text"])) {
4556 $link = "<a href=\"" . $_SESSION["infopanel"]["link"] . "\" target=\"" .
4557 ilFrameTargetInfo::_getFrame("MainContent") .
4558 "\">";
4559 $link .= $lng->txt($_SESSION["infopanel"]["text"]);
4560 $link .= "</a>";
4561 }
4562
4563 // deactivated
4564 if (!empty($_SESSION["infopanel"]["img"])) {
4565 $link .= "<td><a href=\"" . $_SESSION["infopanel"]["link"] . "\" target=\"" .
4566 ilFrameTargetInfo::_getFrame("MainContent") .
4567 "\">";
4568 $link .= "<img src=\"" . "./templates/" . $ilUser->prefs["skin"] . "/images/" .
4569 $_SESSION["infopanel"]["img"] . "\" border=\"0\" vspace=\"0\"/>";
4570 $link .= "</a></td>";
4571 }
4572
4573 $tpl->setVariable("INFO_ICONS", $link);
4574 $tpl->parseCurrentBlock();
4575 }
4576
4577 //if (!$a_keep)
4578 //{
4579 ilSession::clear("infopanel");
4580 //}
4581 }
4582
4583
4592 public static function dirsize($directory)
4593 {
4594 $size = 0;
4595 if (!is_dir($directory)) {
4596 // BEGIN DiskQuota Suppress PHP warning when attempting to determine
4597 // dirsize of non-existing directory
4598 $size = @filesize($directory);
4599 // END DiskQuota Suppress PHP warning.
4600 return ($size === false) ? -1 : $size;
4601 }
4602 if ($DIR = opendir($directory)) {
4603 while (($dirfile = readdir($DIR)) !== false) {
4604 if (is_link($directory . DIRECTORY_SEPARATOR . $dirfile) || $dirfile == '.' || $dirfile == '..') {
4605 continue;
4606 }
4607 if (is_file($directory . DIRECTORY_SEPARATOR . $dirfile)) {
4608 $size += filesize($directory . DIRECTORY_SEPARATOR . $dirfile);
4609 } elseif (is_dir($directory . DIRECTORY_SEPARATOR . $dirfile)) {
4610 // BEGIN DiskQuota: dirsize is not a global function anymore
4611 $dirSize = ilUtil::dirsize($directory . DIRECTORY_SEPARATOR . $dirfile);
4612 // END DiskQuota: dirsize is not a global function anymore
4613 if ($dirSize >= 0) {
4614 $size += $dirSize;
4615 } else {
4616 return -1;
4617 }
4618 }
4619 }
4620 closedir($DIR);
4621 }
4622 return $size;
4623 }
4624
4625 public static function randomhash()
4626 {
4627 $random = new \ilRandom();
4628 return md5($random->int(1, 9999999) + str_replace(" ", "", (string) microtime()));
4629 }
4630
4631 public static function setCookie($a_cookie_name, $a_cookie_value = '', $a_also_set_super_global = true, $a_set_cookie_invalid = false)
4632 {
4633 /*
4634 if(!(bool)$a_set_cookie_invalid) $expire = IL_COOKIE_EXPIRE;
4635 else $expire = time() - (365*24*60*60);
4636 */
4637 // Temporary fix for feed.php
4638 if (!(bool) $a_set_cookie_invalid) {
4639 $expire = 0;
4640 } else {
4641 $expire = time() - (365 * 24 * 60 * 60);
4642 }
4643 /* We MUST NOT set the global constant here, because this affects the session_set_cookie_params() call as well
4644 if(!defined('IL_COOKIE_SECURE'))
4645 {
4646 define('IL_COOKIE_SECURE', false);
4647 }
4648 */
4649 $secure = false;
4650 if (defined('IL_COOKIE_SECURE')) {
4651 $secure = IL_COOKIE_SECURE;
4652 }
4653
4654 setcookie(
4655 $a_cookie_name,
4656 $a_cookie_value,
4657 $expire,
4658 IL_COOKIE_PATH,
4659 IL_COOKIE_DOMAIN,
4660 $secure,
4661 IL_COOKIE_HTTPONLY
4662 );
4663
4664 if ((bool) $a_also_set_super_global) {
4665 $_COOKIE[$a_cookie_name] = $a_cookie_value;
4666 }
4667 }
4668
4669 public static function _sanitizeFilemame($a_filename)
4670 {
4671 return strip_tags(self::stripSlashes($a_filename));
4672 }
4673
4674 public static function _getHttpPath()
4675 {
4676 global $DIC;
4677
4678 $ilIliasIniFile = $DIC["ilIliasIniFile"];
4679
4680 if ($_SERVER['SHELL'] || php_sapi_name() == 'cli' ||
4681 // fallback for windows systems, useful in crons
4682 (class_exists("ilContext") && !ilContext::usesHTTP())) {
4683 return $ilIliasIniFile->readVariable('server', 'http_path');
4684 } else {
4685 return ILIAS_HTTP_PATH;
4686 }
4687 }
4688
4694 public static function printBacktrace($a_limit = 0)
4695 {
4696 $bt = debug_backtrace();
4697 $cnt = 0;
4698 foreach ($bt as $t) {
4699 if ($cnt != 0 && ($a_limit == 0 || $cnt <= $a_limit)) {
4700 echo "<br>" . $t["file"] . ", " . $t["function"] . " [" . $t["line"] . "]";
4701 }
4702 $cnt++;
4703 }
4704 echo "<br>";
4705 }
4706
4721 public static function parseImportId($a_import_id)
4722 {
4723 $exploded = explode('_', $a_import_id);
4724
4725 $parsed['orig'] = $a_import_id;
4726 if ($exploded[0] == 'il') {
4727 $parsed['prefix'] = $exploded[0];
4728 }
4729 if (is_numeric($exploded[1])) {
4730 $parsed['inst_id'] = (int) $exploded[1];
4731 }
4732 $parsed['type'] = $exploded[2];
4733
4734 if (is_numeric($exploded[3])) {
4735 $parsed['id'] = (int) $exploded[3];
4736 }
4737 return $parsed;
4738 }
4739
4746 public static function unserializeSession($data)
4747 {
4748 $vars = preg_split(
4749 '/([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff^|]*)\|/',
4750 $data,
4751 -1,
4752 PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE
4753 );
4754
4755 $result = array();
4756
4757 for ($i = 0; $vars[$i]; $i++) {
4758 $result[$vars[$i++]] = unserialize($vars[$i]);
4759 }
4760
4761 return $result;
4762 }
4763
4764
4777 public function rangeDownload($file)
4778 {
4779 $fp = @fopen($file, 'rb');
4780
4781 $size = filesize($file); // File size
4782 $length = $size; // Content length
4783 $start = 0; // Start byte
4784 $end = $size - 1; // End byte
4785 // Now that we've gotten so far without errors we send the accept range header
4786 /* At the moment we only support single ranges.
4787 * Multiple ranges requires some more work to ensure it works correctly
4788 * and comply with the spesifications: http://www.w3.org/Protocols/rfc2616/rfc2616-sec19.html#sec19.2
4789 *
4790 * Multirange support annouces itself with:
4791 * header('Accept-Ranges: bytes');
4792 *
4793 * Multirange content must be sent with multipart/byteranges mediatype,
4794 * (mediatype = mimetype)
4795 * as well as a boundry header to indicate the various chunks of data.
4796 */
4797 header("Accept-Ranges: 0-$length");
4798 // header('Accept-Ranges: bytes');
4799 // multipart/byteranges
4800 // http://www.w3.org/Protocols/rfc2616/rfc2616-sec19.html#sec19.2
4801 if (isset($_SERVER['HTTP_RANGE'])) {
4802 $c_start = $start;
4803 $c_end = $end;
4804 // Extract the range string
4805 list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
4806 // Make sure the client hasn't sent us a multibyte range
4807 if (strpos($range, ',') !== false) {
4808
4809 // (?) Shoud this be issued here, or should the first
4810 // range be used? Or should the header be ignored and
4811 // we output the whole content?
4812 header('HTTP/1.1 416 Requested Range Not Satisfiable');
4813 header("Content-Range: bytes $start-$end/$size");
4814 // (?) Echo some info to the client?
4815 exit;
4816 }
4817 // If the range starts with an '-' we start from the beginning
4818 // If not, we forward the file pointer
4819 // And make sure to get the end byte if spesified
4820 if ($range == '-') {
4821
4822 // The n-number of the last bytes is requested
4823 $c_start = $size - substr($range, 1);
4824 } else {
4825 $range = explode('-', $range);
4826 $c_start = $range[0];
4827 $c_end = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $size;
4828 }
4829 /* Check the range and make sure it's treated according to the specs.
4830 * http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
4831 */
4832 // End bytes can not be larger than $end.
4833 $c_end = ($c_end > $end) ? $end : $c_end;
4834 // Validate the requested range and return an error if it's not correct.
4835 if ($c_start > $c_end || $c_start > $size - 1 || $c_end >= $size) {
4836 header('HTTP/1.1 416 Requested Range Not Satisfiable');
4837 header("Content-Range: bytes $start-$end/$size");
4838 // (?) Echo some info to the client?
4839 exit;
4840 }
4841 $start = $c_start;
4842 $end = $c_end;
4843 $length = $end - $start + 1; // Calculate new content length
4844 fseek($fp, $start);
4845 header('HTTP/1.1 206 Partial Content');
4846 }
4847 // Notify the client the byte range we'll be outputting
4848 header("Content-Range: bytes $start-$end/$size");
4849 header("Content-Length: $length");
4850
4851 // Start buffered download
4852 $buffer = 1024 * 8;
4853 while (!feof($fp) && ($p = ftell($fp)) <= $end) {
4854 if ($p + $buffer > $end) {
4855
4856 // In case we're only outputtin a chunk, make sure we don't
4857 // read past the length
4858 $buffer = $end - $p + 1;
4859 }
4860 set_time_limit(0); // Reset time limit for big files
4861 echo fread($fp, $buffer);
4862 flush(); // Free up memory. Otherwise large files will trigger PHP's memory limit.
4863 }
4864
4865 fclose($fp);
4866 }
4867
4868
4869 //
4870 // used to be in ilFormat
4871 //
4872
4885 protected static function _getSizeMagnitude()
4886 {
4887 return 1024;
4888 }
4889
4903 protected static function fmtFloat($a_float, $a_decimals = 0, $a_dec_point = null, $a_thousands_sep = null, $a_suppress_dot_zero = false)
4904 {
4905 global $DIC;
4906
4907 $lng = $DIC->language();
4908
4909 if ($a_dec_point == null) {
4910 {
4911 $a_dec_point = ".";
4912 }
4913 }
4914 if ($a_dec_point == '-lang_sep_decimal-') {
4915 $a_dec_point = ".";
4916 }
4917
4918 if ($a_thousands_sep == null) {
4919 $a_thousands_sep = $lng->txt('lang_sep_thousand');
4920 }
4921 if ($a_thousands_sep == '-lang_sep_thousand-') {
4922 $a_thousands_sep = ",";
4923 }
4924
4925 $txt = number_format($a_float, $a_decimals, $a_dec_point, $a_thousands_sep);
4926
4927 // remove trailing ".0"
4928 if (($a_suppress_dot_zero == 0 || $a_decimals == 0)
4929 && substr($txt, -2) == $a_dec_point . '0'
4930 ) {
4931 $txt = substr($txt, 0, strlen($txt) - 2);
4932 }
4933 if ($a_float == 0 and $txt == "") {
4934 $txt = "0";
4935 }
4936
4937 return $txt;
4938 }
4939
4956 public static function formatSize($size, $a_mode = 'short', $a_lng = null)
4957 {
4958 global $DIC;
4959
4960 $lng = $DIC->language();
4961 if ($a_lng == null) {
4962 $a_lng = $lng;
4963 }
4964
4965 $mag = self::_getSizeMagnitude();
4966
4967 if ($size >= $mag * $mag * $mag) {
4968 $scaled_size = $size / $mag / $mag / $mag;
4969 $scaled_unit = 'lang_size_gb';
4970 } else {
4971 if ($size >= $mag * $mag) {
4972 $scaled_size = $size / $mag / $mag;
4973 $scaled_unit = 'lang_size_mb';
4974 } else {
4975 if ($size >= $mag) {
4976 $scaled_size = $size / $mag;
4977 $scaled_unit = 'lang_size_kb';
4978 } else {
4979 $scaled_size = $size;
4980 $scaled_unit = 'lang_size_bytes';
4981 }
4982 }
4983 }
4984
4985 $result = self::fmtFloat($scaled_size, ($scaled_unit
4986 == 'lang_size_bytes') ? 0 : 1, $a_lng->txt('lang_sep_decimal'), $a_lng->txt('lang_sep_thousand'), true)
4987 . ' ' . $a_lng->txt($scaled_unit);
4988 if ($a_mode == 'long' && $size > $mag) {
4989 $result .= ' (' . self::fmtFloat($size, 0, $a_lng->txt('lang_sep_decimal'), $a_lng->txt('lang_sep_thousand')) . ' '
4990 . $a_lng->txt('lang_size_bytes') . ')';
4991 }
4992
4993 return $result;
4994 }
4995
4996
4997 //
4998 // used for disk quotas
4999 //
5000
5001 public static function MB2Bytes($a_value)
5002 {
5003 return ((int) $a_value) * pow(self::_getSizeMagnitude(), 2);
5004 }
5005
5006 public static function Bytes2MB($a_value)
5007 {
5008 return ((int) $a_value) / (pow(self::_getSizeMagnitude(), 2));
5009 }
5010
5018 public static function dbSupportsDisctinctUmlauts()
5019 {
5020 global $DIC;
5021
5022 if (!isset(self::$db_supports_distinct_umlauts)) {
5023 $ilDB = $DIC->database();
5024 $set = $ilDB->query("SELECT (" . $ilDB->quote("A", "text") . " = " . $ilDB->quote("Ä", "text") . ") t FROM DUAL ");
5025 $rec = $ilDB->fetchAssoc($set);
5026 self::$db_supports_distinct_umlauts = !(bool) $rec["t"];
5027 }
5028
5029 return self::$db_supports_distinct_umlauts;
5030 }
5031
5037 public static function dumpVar($mixed = null)
5038 {
5039 echo '<pre>';
5040 var_dump($mixed);
5041 echo '</pre>';
5042 }
5043} // END class.ilUtil
$parser
$parser
Definition: BPMN2Parser.php:23
$result
$result
Definition: CleanUpTest.php:463
$size
$size
Definition: RandomTest.php:84
$tpl
$tpl
Definition: ilias.php:10
$ascii_filename
$ascii_filename
Definition: metadata.php:311
IL_COOKIE_PATH
const IL_COOKIE_PATH(isset($_GET["client_id"]))
Definition: metadata.php:32
$_COOKIE
$_COOKIE['client_id']
Definition: server.php:9
print
if(! $in) print
Definition: UtfNormalGenerate.php:37
$path
$path
Definition: aliased.php:25
$source
$source
Definition: linkback.php:22
exit
exit
Definition: backend.php:16
$end
$end
Definition: bench_freebusygenerator.php:28
$sourceDir
$sourceDir
Definition: buildPhar.php:15
$filename
$filename
Definition: buildRTE.php:89
$version
$version
Definition: build.php:27
$_SESSION
$_SESSION["AccountId"]
Definition: cfg.phpunit.template.php:10
php
An exception for terminatinating execution or to throw for unit testing.
IL_CAL_UNIX
const IL_CAL_UNIX
Definition: class.ilDateTime.php:11
IL_CAL_DATETIME
const IL_CAL_DATETIME
Definition: class.ilDateTime.php:9
ilContext\usesHTTP
static usesHTTP()
Uses HTTP aka browser.
Definition: class.ilContext.php:122
ilCtrl
This class provides processing control methods.
Definition: class.ilCtrl.php:13
ilDateTime
@classDescription Date and time handling
Definition: class.ilDateTime.php:34
ilDateTime\get
get($a_format, $a_format_str='', $a_tz='')
get formatted date
Definition: class.ilDateTime.php:506
ilException
Base class for ILIAS Exception handling.
Definition: class.ilException.php:35
ilFileDelivery
Class ilFileDelivery.
Definition: class.ilFileDelivery.php:22
ilFileUtils\getValidFilename
static getValidFilename($a_filename)
Get valid filename.
Definition: class.ilFileUtils.php:837
ilFileUtils\recursive_dirscan
static recursive_dirscan($dir, &$arr)
Recursively scans a given directory and writes path and filename into referenced array.
Definition: class.ilFileUtils.php:156
ilFrameTargetInfo\_getFrame
static _getFrame($a_class, $a_type='')
Get content frame name.
Definition: class.ilFrameTargetInfo.php:18
ilHTTPS\getInstance
static getInstance()
Get https instance.
Definition: class.ilHTTPS.php:52
ilMailRfc822AddressParserFactory
Class ilMailRfc822AddressParserFactory.
Definition: class.ilMailRfc822AddressParserFactory.php:9
ilMail\ILIAS_HOST
const ILIAS_HOST
Definition: class.ilMail.php:14
ilMathJax\getInstance
static getInstance()
Singleton: get instance.
Definition: class.ilMathJax.php:155
ilObjUser\_removeItemFromDesktops
static _removeItemFromDesktops($a_id)
removes object from all user's desktops @access public
Definition: class.ilObjUser.php:3245
ilObject\_lookupObjId
static _lookupObjId($a_id)
Definition: class.ilObject.php:1107
ilObject\_lookupTitle
static _lookupTitle($a_id)
lookup object title
Definition: class.ilObject.php:988
ilRbacReview\_getOperationIdsByName
static _getOperationIdsByName($operations)
get ops_id's by name.
Definition: class.ilRbacReview.php:1287
ilSecuritySettings\_getInstance
static _getInstance()
Get instance of ilSecuritySettings.
Definition: class.ilSecuritySettings.php:107
ilSession\clear
static clear($a_var)
Unset a value.
Definition: class.ilSession.php:452
ilStr\strPos
static strPos($a_haystack, $a_needle, $a_offset=null)
Definition: class.ilStr.php:30
ilStr\subStr
static subStr($a_str, $a_start, $a_length=null)
Definition: class.ilStr.php:15
ilStr\strCmp
static strCmp($a, $b)
Compare two strings.
Definition: class.ilStr.php:109
ilStr\strToUpper
static strToUpper($a_string)
Definition: class.ilStr.php:96
ilStr\strLen
static strLen($a_string)
Definition: class.ilStr.php:78
ilStyleDefinition\getCurrentSkin
static getCurrentSkin()
get the current skin
Definition: class.ilStyleDefinition.php:111
ilStyleDefinition\getCurrentStyle
static getCurrentStyle()
get the current style or sub style
Definition: class.ilStyleDefinition.php:283
ilUtil
Util class various functions, usage as namespace.
Definition: class.ilUtil.php:22
ilUtil\getPasswordValidChars
static getPasswordValidChars($a_as_regex=true, $a_only_special_chars=false)
All valid chars for password.
Definition: class.ilUtil.php:1236
ilUtil\CreateIsoFromFolder
static CreateIsoFromFolder($a_dir, $a_file)
Definition: class.ilUtil.php:1751
ilUtil\getDataDir
static getDataDir()
get data directory (outside webspace)
Definition: class.ilUtil.php:1521
ilUtil\_getSizeMagnitude
static _getSizeMagnitude()
Returns the magnitude used for size units.
Definition: class.ilUtil.php:4885
ilUtil\delDir
static delDir($a_dir, $a_clean_only=false)
removes a dir and all its content (subdirs and files) recursively
Definition: class.ilUtil.php:2270
ilUtil\getJSLocation
static getJSLocation($a_js_name, $a_js_location="", $add_version=false)
get full javascript file name (path inclusive) of current user
Definition: class.ilUtil.php:220
ilUtil\getMySQLTimestamp
static getMySQLTimestamp($a_ts)
Get MySQL timestamp in 4.1.x or higher format (yyyy-mm-dd hh:mm:ss) This function converts a timestam...
Definition: class.ilUtil.php:4440
ilUtil\convertImage
static convertImage( $a_from, $a_to, $a_target_format="", $a_geometry="", $a_background_color="")
convert image
Definition: class.ilUtil.php:1847
ilUtil\assembleParameterString
static assembleParameterString($a_par_arr)
Definition: class.ilUtil.php:2948
ilUtil\dumpString
static dumpString($a_str)
dumps ord values of every character of string $a_str
Definition: class.ilUtil.php:2967
ilUtil\appendUrlParameterString
static appendUrlParameterString($a_url, $a_par, $xml_style=false)
append URL parameter string ("par1=value1&par2=value2...") to given URL string
Definition: class.ilUtil.php:2135
ilUtil\prepareDBString
static prepareDBString($a_str)
prepare a string for db writing (insert/update)
Definition: class.ilUtil.php:2871
ilUtil\getMemString
static getMemString()
get current memory usage as string
Definition: class.ilUtil.php:3395
ilUtil\_sanitizeFilemame
static _sanitizeFilemame($a_filename)
Definition: class.ilUtil.php:4669
ilUtil\formRadioButton
static formRadioButton($checked, $varname, $value, $onclick=null, $disabled=false)
??? @access public
Definition: class.ilUtil.php:505
ilUtil\checkInput
static checkInput($vars)
???
Definition: class.ilUtil.php:560
ilUtil\secureString
static secureString($a_str, $a_strip_html=true, $a_allow="")
Remove unsecure tags.
Definition: class.ilUtil.php:2438
ilUtil\unmaskSecureTags
static unmaskSecureTags($a_str, $allow_array)
Definition: class.ilUtil.php:2523
ilUtil\insertLatexImages
static insertLatexImages($a_text, $a_start='[tex]', $a_end='[/tex]')
replace [tex]...[/tex] tags with formula image code
Definition: class.ilUtil.php:4141
ilUtil\formCheckbox
static formCheckbox($checked, $varname, $value, $disabled=false)
??? @access public
Definition: class.ilUtil.php:432
ilUtil\isConvertVersionAtLeast
static isConvertVersionAtLeast($a_version)
Compare convert version numbers.
Definition: class.ilUtil.php:1810
ilUtil\formDisabledRadioButton
static formDisabledRadioButton($checked, $varname, $value, $disabled)
??? @accesspublic @paramstring @paramstring @paramstring
Definition: class.ilUtil.php:477
ilUtil\excelTime
static excelTime($year="", $month="", $day="", $hour="", $minute="", $second="")
Calculates a Microsoft Excel date/time value.
Definition: class.ilUtil.php:3502
ilUtil\formatBytes
static formatBytes($size, $decimals=0)
Definition: class.ilUtil.php:4300
ilUtil\getUploadSizeLimitBytes
static getUploadSizeLimitBytes()
Definition: class.ilUtil.php:4311
ilUtil\_sortIds
static _sortIds($a_ids, $a_table, $a_field, $a_id_name)
Function that sorts ids by a given table field using WHERE IN E.g: __sort(array(6,...
Definition: class.ilUtil.php:4405
ilUtil\checkFormEmpty
static checkFormEmpty($emptyFields)
??? @access public
Definition: class.ilUtil.php:612
ilUtil\convertPhpIniSizeValueToBytes
static convertPhpIniSizeValueToBytes($phpIniSizeValue)
Definition: class.ilUtil.php:4321
ilUtil\isHTML
static isHTML($a_text)
Checks if a given string contains HTML or not.
Definition: class.ilUtil.php:4217
ilUtil\getGDSupportedImageType
static getGDSupportedImageType($a_desired_type)
returns the best supported image type by this PHP build
Definition: class.ilUtil.php:3231
ilUtil\setCookie
static setCookie($a_cookie_name, $a_cookie_value='', $a_also_set_super_global=true, $a_set_cookie_invalid=false)
Definition: class.ilUtil.php:4631
ilUtil\sortArray
static sortArray( $array, $a_array_sortby, $a_array_sortorder=0, $a_numeric=false, $a_keep_keys=false)
sortArray
Definition: class.ilUtil.php:3072
ilUtil\stripOnlySlashes
static stripOnlySlashes($a_str)
strip slashes if magic qoutes is enabled
Definition: class.ilUtil.php:2423
ilUtil\sendQuestion
static sendQuestion($a_info="", $a_keep=false)
Send Question to Screen.
Definition: class.ilUtil.php:4513
ilUtil\execQuoted
static execQuoted($cmd, $args=null)
exec command and fix spaces on windows
Definition: class.ilUtil.php:3450
ilUtil\replaceUrlParameterString
static replaceUrlParameterString($url, $parametersArray)
Definition: class.ilUtil.php:3647
ilUtil\insertInstIntoID
static insertInstIntoID($a_value)
inserts installation id into ILIAS id
Definition: class.ilUtil.php:3338
ilUtil\__extractRefId
static __extractRefId($role_title)
extract ref id from role title, e.g.
Definition: class.ilUtil.php:4359
ilUtil\KT_replaceParam
static KT_replaceParam($qstring, $paramName, $paramValue)
Definition: class.ilUtil.php:3638
ilUtil\isIPv4
static isIPv4($a_str)
Definition: class.ilUtil.php:3962
ilUtil\tf2yn
static tf2yn($a_tf)
convert true/false to "y"/"n"
Definition: class.ilUtil.php:2998
ilUtil\replaceLinkProperties
static replaceLinkProperties($matches)
replaces target _blank with _self and the link text with the according object title.
Definition: class.ilUtil.php:818
ilUtil\Linkbar
static Linkbar($AScript, $AHits, $ALimit, $AOffset, $AParams=array(), $ALayout=array(), $prefix='')
Linkbar Diese Funktion erzeugt einen typischen Navigationsbalken mit "Previous"- und "Next"-Links und...
Definition: class.ilUtil.php:652
ilUtil\parseImportId
static parseImportId($a_import_id)
Parse an ilias import id Typically of type il_[IL_INST_ID]_[OBJ_TYPE]_[OBJ_ID] returns array( 'orig' ...
Definition: class.ilUtil.php:4721
ilUtil\getJavaPath
static getJavaPath()
get full java path (dir + java command)
Definition: class.ilUtil.php:2120
ilUtil\escapeShellArg
static escapeShellArg($a_arg)
Definition: class.ilUtil.php:3416
ilUtil\setPathStr
static setPathStr($a_path)
??? @access public
Definition: class.ilUtil.php:572
ilUtil\getImageTagByType
static getImageTagByType($a_type, $a_path, $a_big=false)
Builds an html image tag TODO: function still in use, but in future use getImagePath and move HTML-Co...
Definition: class.ilUtil.php:35
ilUtil\readFile
static readFile($a_file)
there are some known problems with the original readfile method, which sometimes truncates delivered ...
Definition: class.ilUtil.php:2028
ilUtil\getWebspaceDir
static getWebspaceDir($mode="filesystem")
get webspace directory
Definition: class.ilUtil.php:1498
ilUtil\unmaskAttributeTag
static unmaskAttributeTag($a_str, $tag, $tag_att)
Definition: class.ilUtil.php:2667
ilUtil\rangeDownload
rangeDownload($file)
Send a file via range request, see http://mobiforge.com/design-development/content-delivery-mobile-de...
Definition: class.ilUtil.php:4777
ilUtil\execConvert
static execConvert($args)
execute convert command
Definition: class.ilUtil.php:1798
ilUtil\rCopy
static rCopy($a_sdir, $a_tdir, $preserveTimeAttributes=false)
Copies content of a directory $a_sdir recursively to a directory $a_tdir.
Definition: class.ilUtil.php:1451
ilUtil\prepareTextareaOutput
static prepareTextareaOutput($txt_output, $prepare_for_latex_output=false, $omitNl2BrWhenTextArea=false)
Prepares a string for a text area output where latex code may be in it If the text is HTML-free,...
Definition: class.ilUtil.php:4165
ilUtil\getStyleSheetLocation
static getStyleSheetLocation($mode="output", $a_css_name="", $a_css_location="")
get full style sheet file name (path inclusive) of current user
Definition: class.ilUtil.php:174
ilUtil\sanitateTargetPath
static sanitateTargetPath($a_target)
Definition: class.ilUtil.php:4099
ilUtil\redirect
static redirect($a_script)
Definition: class.ilUtil.php:3318
ilUtil\resizeImage
static resizeImage($a_from, $a_to, $a_width, $a_height, $a_constrain_prop=false)
resize image
Definition: class.ilUtil.php:1884
ilUtil\isPassword
static isPassword($a_passwd, &$customError=null)
validates a password @access public
Definition: class.ilUtil.php:1101
ilUtil\sendFailure
static sendFailure($a_info="", $a_keep=false)
Send Failure Message to Screen.
Definition: class.ilUtil.php:4497
ilUtil\stripSlashesRecursive
static stripSlashesRecursive($a_data, $a_strip_html=true, $a_allow="")
Strip slashes from array and sub-arrays.
Definition: class.ilUtil.php:2382
ilUtil\_getHttpPath
static _getHttpPath()
Definition: class.ilUtil.php:4674
ilUtil\makeClickable
static makeClickable($a_text, $detectGotoLinks=false)
makeClickable In Texten enthaltene URLs und Mail-Adressen klickbar machen
Definition: class.ilUtil.php:747
ilUtil\getClientIdByString
static getClientIdByString(string $clientId)
Definition: class.ilUtil.php:2369
ilUtil\groupNameExists
static groupNameExists($a_group_name, $a_id=0)
checks if group name already exists.
Definition: class.ilUtil.php:3357
ilUtil\virusHandling
static virusHandling($a_file, $a_orig_name="", $a_clean=true)
scan file for viruses and clean files if possible
Definition: class.ilUtil.php:3779
ilUtil\buildLatexImages
static buildLatexImages($a_text, $a_dir)
replace [tex]...[/tex] tags with formula image code for offline use
Definition: class.ilUtil.php:4151
ilUtil\printBacktrace
static printBacktrace($a_limit=0)
printBacktrace
Definition: class.ilUtil.php:4694
ilUtil\deliverData
static deliverData($a_data, $a_filename, $mime="application/octet-stream", $charset="")
deliver data for download via browser.
Definition: class.ilUtil.php:1931
ilUtil\maskSecureTags
static maskSecureTags($a_str, $allow_array)
Definition: class.ilUtil.php:2492
ilUtil\unmaskTag
static unmaskTag($a_str, $t, $fix_param="")
Definition: class.ilUtil.php:2722
ilUtil\zip
static zip($a_dir, $a_file, $compress_content=false)
zips given directory/file into given zip.file
Definition: class.ilUtil.php:1705
ilUtil\isWindows
static isWindows()
check wether the current client system is a windows system
Definition: class.ilUtil.php:3407
ilUtil\img
static img($a_src, $a_alt=null, $a_width="", $a_height="", $a_border=0, $a_id="", $a_class="")
Build img tag.
Definition: class.ilUtil.php:1902
ilUtil\dumpVar
static dumpVar($mixed=null)
Dump var.
Definition: class.ilUtil.php:5037
ilUtil\getSafeFilename
static getSafeFilename($a_initial_filename)
Definition: class.ilUtil.php:3544
ilUtil\fmtFloat
static fmtFloat($a_float, $a_decimals=0, $a_dec_point=null, $a_thousands_sep=null, $a_suppress_dot_zero=false)
format a float
Definition: class.ilUtil.php:4903
ilUtil\switchColor
static switchColor($a_num, $a_css1, $a_css2)
switches style sheets for each even $a_num (used for changing colors of different result rows)
Definition: class.ilUtil.php:595
ilUtil\rRenameSuffix
static rRenameSuffix($a_dir, $a_old_suffix, $a_new_suffix)
Renames all files with certain suffix and gives them a new suffix.
Definition: class.ilUtil.php:3587
ilUtil\formatSize
static formatSize($size, $a_mode='short', $a_lng=null)
Returns the specified file size value in a human friendly form.
Definition: class.ilUtil.php:4956
ilUtil\extractParameterString
static extractParameterString($a_parstr)
extracts parameter value pairs from a string into an array
Definition: class.ilUtil.php:2900
ilUtil\period2String
static period2String(ilDateTime $a_from, $a_to=null)
Return a string of time period.
Definition: class.ilUtil.php:4235
ilUtil\getDir
static getDir($a_dir, $a_rec=false, $a_sub_dir="")
get directory
Definition: class.ilUtil.php:2319
ilUtil\_getObjectsByOperations
static _getObjectsByOperations($a_obj_type, $a_operation, $a_usr_id=0, $limit=0)
Get all objects of a specific type and check access This function is not recursive,...
Definition: class.ilUtil.php:3997
ilUtil\now
static now()
Return current timestamp in Y-m-d H:i:s format.
Definition: class.ilUtil.php:3899
ilUtil\getConvertCmd
static getConvertCmd()
get convert command
Definition: class.ilUtil.php:1786
ilUtil\getP3PLocation
static getP3PLocation()
Get p3p file path.
Definition: class.ilUtil.php:256
ilUtil\escapeShellCmd
static escapeShellCmd($a_arg)
escape shell cmd
Definition: class.ilUtil.php:3432
ilUtil\maskAttributeTag
static maskAttributeTag($a_str, $tag, $tag_att)
Definition: class.ilUtil.php:2633
ilUtil\is_email
static is_email($a_email, ilMailRfc822AddressParserFactory $mailAddressParserFactory=null)
This preg-based function checks whether an e-mail address is formally valid.
Definition: class.ilUtil.php:1074
ilUtil\shortenWords
static shortenWords($a_str, $a_len=30, $a_dots=true)
Ensure that the maximum word lenght within a text is not longer than $a_len.
Definition: class.ilUtil.php:1389
ilUtil\processConvertVersion
static processConvertVersion($a_version)
Parse convert version string, e.g.
Definition: class.ilUtil.php:1827
ilUtil\isLogin
static isLogin($a_login)
Definition: class.ilUtil.php:1304
ilUtil\getNewContentStyleSheetLocation
static getNewContentStyleSheetLocation($mode="output")
get full style sheet file name (path inclusive) of current user
Definition: class.ilUtil.php:281
ilUtil\getSecureTags
static getSecureTags()
Definition: class.ilUtil.php:2486
ilUtil\securePlainString
static securePlainString($a_str)
Remove unsecure characters from a plain text string.
Definition: class.ilUtil.php:2561
ilUtil\dbSupportsDisctinctUmlauts
static dbSupportsDisctinctUmlauts()
Only temp fix for #8603, should go to db classes.
Definition: class.ilUtil.php:5018
ilUtil\ilTempnam
static ilTempnam($a_temp_path=null)
Returns a unique and non existing Path for e temporary file or directory.
Definition: class.ilUtil.php:1549
ilUtil\deliverFile
static deliverFile( $a_file, $a_filename, $a_mime='', $isInline=false, $removeAfterDelivery=false, $a_exit_after=true)
deliver file for download via browser.
Definition: class.ilUtil.php:1987
ilUtil\getASCIIFilename
static getASCIIFilename($a_filename)
convert utf8 to ascii filename
Definition: class.ilUtil.php:2050
ilUtil\htmlentitiesOutsideHTMLTags
static htmlentitiesOutsideHTMLTags($htmlText)
Encodes HTML entities outside of HTML tags.
Definition: class.ilUtil.php:2092
ilUtil\getHtmlPath
static getHtmlPath($relative_path)
get url of path
Definition: class.ilUtil.php:150
ilUtil\$db_supports_distinct_umlauts
static $db_supports_distinct_umlauts
Definition: class.ilUtil.php:23
ilUtil\getPasswordRequirementsInfo
static getPasswordRequirementsInfo()
infotext for ilPasswordInputGUI setInfo()
Definition: class.ilUtil.php:1256
ilUtil\stripScriptHTML
static stripScriptHTML($a_str, $a_allow="", $a_rm_js=true)
strip only html tags (4.0) from text $allowed contains tags to be allowed, in format tags a and b ar...
Definition: class.ilUtil.php:2762
ilUtil\unzip
static unzip($a_file, $overwrite=false, $a_flat=false)
unzip file
Definition: class.ilUtil.php:1594
ilUtil\htmlencodePlainString
static htmlencodePlainString($a_str, $a_make_links_clickable, $a_detect_goto_links=false)
Encodes a plain text string into HTML for display in a browser.
Definition: class.ilUtil.php:2585
ilUtil\array_php2js
static array_php2js($data)
convert php arrays to javascript arrays
Definition: class.ilUtil.php:3752
ilUtil\includeMathjax
includeMathjax($a_tpl=null)
Include Mathjax.
Definition: class.ilUtil.php:4131
ilUtil\unique_multi_array
static unique_multi_array($array, $sub_key)
Make a multi-dimensional array to have only DISTINCT values for a certain "column".
Definition: class.ilUtil.php:3206
ilUtil\makeDateSelect
static makeDateSelect($prefix, $year="", $month="", $day="", $startyear="", $a_long_month=true, $a_further_options=array(), $emptyoption=false)
Creates a combination of HTML selects for date inputs.
Definition: class.ilUtil.php:851
ilUtil\generatePasswords
static generatePasswords($a_number)
Generate a number of passwords.
Definition: class.ilUtil.php:3661
ilUtil\getSelectName
static getSelectName($selected, $values)
???
Definition: class.ilUtil.php:416
ilUtil\randomhash
static randomhash()
Definition: class.ilUtil.php:4625
ilUtil\stripSlashes
static stripSlashes($a_str, $a_strip_html=true, $a_allow="")
strip slashes if magic qoutes is enabled
Definition: class.ilUtil.php:2406
ilUtil\date_mysql2time
static date_mysql2time($mysql_date_time)
make time object from mysql_date_time
Definition: class.ilUtil.php:3885
ilUtil\getFileSizeInfo
static getFileSizeInfo()
Definition: class.ilUtil.php:4278
ilUtil\MB2Bytes
static MB2Bytes($a_value)
Definition: class.ilUtil.php:5001
ilUtil\yn2tf
static yn2tf($a_yn)
convert "y"/"n" to true/false
Definition: class.ilUtil.php:2983
ilUtil\quoteArray
static quoteArray($a_array)
Quotes all members of an array for usage in DB query statement.
Definition: class.ilUtil.php:4455
ilUtil\secureLink
static secureLink($a_str)
Definition: class.ilUtil.php:2741
ilUtil\makeDirParents
static makeDirParents($a_dir)
Create a new directory and all parent directories.
Definition: class.ilUtil.php:2205
ilUtil\isPasswordValidForUserContext
static isPasswordValidForUserContext($clear_text_password, $user, &$error_language_variable=null)
Definition: class.ilUtil.php:1199
ilUtil\sort_func_numeric
static sort_func_numeric($a, $b)
sub-function to sort an array
Definition: class.ilUtil.php:3048
ilUtil\formSelect
static formSelect( $selected, $varname, $options, $multiple=false, $direct_text=false, $size="0", $style_class="", $attribs="", $disabled=false)
Builds a select form field with options and shows the selected option first.
Definition: class.ilUtil.php:328
ilUtil\stableSortArray
static stableSortArray($array, $a_array_sortby, $a_array_sortorder=0, $a_numeric=false)
Sort an aray using a stable sort algorithm, which preveserves the sequence of array elements which ha...
Definition: class.ilUtil.php:3127
ilUtil\removeItemFromDesktops
static removeItemFromDesktops($a_id)
removes object from all user's desktops @access public
Definition: class.ilUtil.php:2885
ilUtil\sendInfo
static sendInfo($a_info="", $a_keep=false)
Send Info Message to Screen.
Definition: class.ilUtil.php:4481
ilUtil\shortenText
static shortenText( $a_str, $a_len, $a_dots=false, $a_next_blank=false, $a_keep_extension=false)
shorten a string to given length.
Definition: class.ilUtil.php:1337
ilUtil\__extractId
static __extractId($ilias_id, $inst_id)
extract ref id from role title, e.g.
Definition: class.ilUtil.php:4380
ilUtil\getTypeIconPath
static getTypeIconPath($a_type, $a_obj_id, $a_size='small')
Get type icon path path Return image path for icon_xxx.pngs Or (if enabled) path to custom icon Depre...
Definition: class.ilUtil.php:63
ilUtil\getImagePath
static getImagePath($img, $module_path="", $mode="output", $offline=false)
get image path (for images located in a template directory)
Definition: class.ilUtil.php:79
ilUtil\deducibleSize
static deducibleSize($a_mime)
checks if mime type is provided by getimagesize()
Definition: class.ilUtil.php:3300
ilUtil\isDN
static isDN($a_str)
Definition: class.ilUtil.php:3956
ilUtil\attribsToArray
static attribsToArray($a_str)
converts a string of format var1 = "val1" var2 = "val2" ... into an array
Definition: class.ilUtil.php:1414
ilUtil\maskTag
static maskTag($a_str, $t, $fix_param="")
Definition: class.ilUtil.php:2694
ilUtil\removeTrailingPathSeparators
static removeTrailingPathSeparators($path)
Definition: class.ilUtil.php:3736
ilUtil\infoPanel
static infoPanel($a_keep=true)
Definition: class.ilUtil.php:4538
ilUtil\processCSVRow
static & processCSVRow(&$row, $quoteAll=false, $separator=";", $outUTF8=false, $compatibleWithMSExcel=true)
Convertes an array for CSV usage.
Definition: class.ilUtil.php:3919
ilUtil\secureUrl
static secureUrl($url)
Prepare secure href attribute.
Definition: class.ilUtil.php:2843
ilUtil\unserializeSession
static unserializeSession($data)
Returns the unserialized ILIAS session data.
Definition: class.ilUtil.php:4746
ilUtil\prepareFormOutput
static prepareFormOutput($a_str, $a_strip=false)
prepares string output for html forms @access public
Definition: class.ilUtil.php:2820
ilUtil\createDirectory
static createDirectory($a_dir, $a_mod=0755)
create directory
Definition: class.ilUtil.php:1578
ilUtil\makeDir
static makeDir($a_dir)
creates a new directory and inherits all filesystem permissions of the parent directory You may pass ...
Definition: class.ilUtil.php:2166
ilUtil\formInput
static formInput($varname, $value, $disabled=false)
create html input area
Definition: class.ilUtil.php:539
ilUtil\getUsersOnline
static getUsersOnline($a_user_id=0)
reads all active sessions from db and returns users that are online OR returns only one active user i...
Definition: class.ilUtil.php:1535
ilUtil\Bytes2MB
static Bytes2MB($a_value)
Definition: class.ilUtil.php:5006
ilUtil\renameExecutables
static renameExecutables($a_dir)
Rename uploaded executables for security reasons.
Definition: class.ilUtil.php:3527
ilUtil\dirsize
static dirsize($directory)
get size of a directory or a file.
Definition: class.ilUtil.php:4592
ilUtil\stripSlashesArray
static stripSlashesArray($a_arr, $a_strip_html=true, $a_allow="")
Strip slashes from array.
Definition: class.ilUtil.php:2354
ilUtil\isAPICall
static isAPICall()
Definition: class.ilUtil.php:3632
ilUtil\makeTimeSelect
static makeTimeSelect($prefix, $short=true, $hour="", $minute="", $second="", $a_use_default=true, $a_further_options=array())
Creates a combination of HTML selects for time inputs.
Definition: class.ilUtil.php:978
ilUtil\sort_func
static sort_func($a, $b)
sub-function to sort an array
Definition: class.ilUtil.php:3017
ilUtil\mergesort
static mergesort(&$array, $cmp_function='strcmp')
Definition: class.ilUtil.php:3150
$name
$name
Definition: client_example.php:35
$login
$login
Definition: cron.php:13
$def
$def
Definition: croninfo.php:21
$key
$key
Definition: croninfo.php:18
$i
$i
Definition: disco.tpl.php:19
$txt
$txt
Definition: error.php:11
$style
$style
Definition: example_012.php:70
$r
$r
Definition: example_031.php:79
$f
$f
Definition: fetch_windows_zones.php:31
$attributes
if(array_key_exists('yes', $_REQUEST)) $attributes
Definition: getconsent.php:85
$target_arr
$target_arr
Definition: goto.php:47
$si
$si
Definition: il_securimage_play.php:7
$ilLog
$ilLog
Definition: inc.setup_header.php:123
ILIAS\FileUpload\Location\TEMPORARY
const TEMPORARY
The ILIAS temporary directory.
Definition: Location.php:38
ILIAS\FileUpload\Location\CUSTOMIZING
const CUSTOMIZING
The filesystem within the web root where all the skins and plugins are saved.
Definition: Location.php:33
ILIAS\FileUpload\Location\WEB
const WEB
The filesystem within the ilias web root.
Definition: Location.php:23
ILIAS\FileUpload\Location\STORAGE
const STORAGE
The filesystem outside of the ilias web root.
Definition: Location.php:28
$base
$base
Definition: index.php:4
$tag
if(function_exists( 'posix_getuid') &&posix_getuid()===0) if(!array_key_exists('t', $options)) $tag
Definition: cron.php:35
$format
$format
Definition: metadata.php:141
$expire
$expire
Definition: saml2-acs.php:140
$message
catch(Exception $e) $message
Definition: saml2-logout.php:34
$errors
$errors
Definition: index.php:6
$target
$target
Definition: test.php:19
$files
$files
Definition: metarefresh.php:49
$user
$user
Definition: migrateto20.php:57
$row
$row
Definition: migrateto20.php:360
Filesystem
Class FlySystemFileAccessTest.
GuzzleHttp\Psr7\$stream
$stream
PHP stream implementation.
Definition: MessageTrait.php:21
ILIAS
Class BaseForm.
PHPMailer\PHPMailer\$clientId
if(array_key_exists('provider', $_GET)) elseif(array_key_exists( 'provider', $_SESSION)) if(!in_array($providerName, ['Google', 'Microsoft', 'Yahoo'])) $clientId
Definition: get_oauth_token.php:77
$ret
$ret
Definition: parser.php:6
$ilSetting
global $ilSetting
Definition: privfeed.php:17
$query
$query
Definition: proxy_ylocal.php:13
$url
$url
Definition: proxy_ylocal.php:28
$ilErr
$ilErr
Definition: raiseError.php:18
$log
$log
Definition: sabredav.php:21
$DIC
global $DIC
Definition: saml.php:7
$lng
$lng
Definition: save_question_post_data.php:23
$res
foreach($_POST as $key=> $value) $res
Definition: save_question_post_data.php:15
$img
$img
Definition: securimage_play.php:39
PREG_SPLIT_DELIM_CAPTURE
echo;exit;}function LogoutNotification($SessionID){ global $ilDB;$q="SELECT session_id, data FROM usr_session WHERE expires > (\w+)\|/" PREG_SPLIT_NO_EMPTY PREG_SPLIT_DELIM_CAPTURE
Definition: shib_logout.php:173
$ilDB
global $ilDB
Definition: storeScorm2004.php:19
$_SERVER
if((!isset($_SERVER['DOCUMENT_ROOT'])) OR(empty($_SERVER['DOCUMENT_ROOT']))) $_SERVER['DOCUMENT_ROOT']
Definition: tcpdf_autoconfig.php:54
$from
$from
Definition: logout-iframe.php:5
$values
$values
Definition: testOperations.php:7
$ilIliasIniFile
$ilIliasIniFile
Definition: imagemanager.php:34
$ilUser
$ilUser
Definition: imgupload.php:18
$start
$start
Definition: bench.php:8
$data
$data
Definition: bench.php:6
ILIAS_MODULE
const ILIAS_MODULE
Definition: server.php:14
$a_type
$a_type
Definition: workflow.php:92
$t
$t
Definition: authorize_403.php:14