Annotation of loncom/interface/lonsearchcat.pm, revision 1.11
1.1 www 1: # The LearningOnline Network
2: # Search Catalog
3: #
1.2 harris41 4: # 03/08/2001 Scott Harrison
1.1 www 5: #
6: package Apache::lonsearchcat;
7:
8: use strict;
9: use Apache::Constants qw(:common);
1.6 harris41 10: use Apache::lonnet();
11: use Apache::File();
1.7 harris41 12: use CGI qw(:standard);
1.1 www 13:
1.3 harris41 14: my %language;
15: my $scrout;
16: my %metadatafields;
17: my %cprtag;
18: my %mimetag;
19:
1.1 www 20: sub handler {
21: my $r = shift;
1.7 harris41 22:
23: # -------------------------------------- see if called from an interactive mode
24: map {
25: my ($name, $value) = split(/=/,$_);
26: $value =~ tr/+/ /;
27: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
28: if ($name eq 'catalogmode') {
29: $ENV{'form.'.$name}=$value;
30: }
31: } (split(/&/,$ENV{'QUERY_STRING'}));
32:
1.1 www 33: $r->content_type('text/html');
34: $r->send_http_header;
35: return OK if $r->header_only;
36:
1.3 harris41 37: %metadatafields=();
38:
1.8 harris41 39: my $hidden='';
40: $hidden=<<END if $ENV{'form.catalogmode'} eq 'interactive';
41: <input type='hidden' name='catalogmode' value='interactive'>
42: END
43:
1.3 harris41 44: # ------------------------------------------------ First, check out environment
45: $metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'};
46:
1.8 harris41 47: # --------------------------------- Compute various listings of metadata values
1.3 harris41 48:
49: %language=();
50: $language{'any'}='Any language';
51: {
52: my $fh=Apache::File->new($r->dir_config('lonTabDir').'/language.tab');
53: map {
54: $_=~/(\w+)\s+([\w\s\-]+)/;
55: $language{$1}=$2;
56: } <$fh>;
57: }
58:
59: %cprtag=();
60: $cprtag{'any'}='Any copyright/distribution';
61: {
62: my $fh=Apache::File->new($r->dir_config('lonIncludes').'/copyright.tab');
63: map {
64: $_=~/(\w+)\s+([\w\s\-]+)/;
65: $cprtag{$1}=$2;
66: } <$fh>;
67: }
68:
69: %mimetag=();
70: $mimetag{'any'}='Any type';
71: {
72: my $fh=Apache::File->new($r->dir_config('lonTabDir').'/filetypes.tab');
73: map {
74: $_=~/(\w+)\s+(\w+)\s+([\w\s\-]+)/;
75: $mimetag{$1}=".$1 $3";
76: } <$fh>;
77: }
78:
1.6 harris41 79: if ($ENV{'form.basicsubmit'} eq 'SEARCH') {
80: return &basicsearch($r,$ENV{'form.basicexp'});
81: }
82:
1.8 harris41 83: $scrout=''; # building a part of screen output
1.3 harris41 84: $scrout.=&searchphrasefield('Limit by title','title',
1.11 ! harris41 85: $ENV{'form.title'});
1.3 harris41 86:
87: $scrout.=&searchphrasefield('Limit by author','author',
1.11 ! harris41 88: $ENV{'form.author'});
1.3 harris41 89:
90: $scrout.=&searchphrasefield('Limit by subject','subject',
1.11 ! harris41 91: $ENV{'form.subject'});
! 92:
! 93: $scrout.=&searchphrasefield('Limit by keywords','keywords',
! 94: $ENV{'form.keywords'});
! 95:
! 96: $scrout.=&searchphrasefield('Limit by URL','url',
! 97: $ENV{'form.url'});
! 98:
! 99: $scrout.=&searchphrasefield('Limit by version','version',
! 100: $ENV{'form.version'});
1.3 harris41 101:
102: $scrout.=&searchphrasefield('Limit by notes','notes',
1.11 ! harris41 103: $ENV{'form.notes'});
1.3 harris41 104:
105: $scrout.=&searchphrasefield('Limit by abstract','abstract',
1.11 ! harris41 106: $ENV{'form.abstract'});
1.3 harris41 107:
1.11 ! harris41 108: $ENV{'form.mime'}='notxxx' unless length($ENV{'form.mime'});
1.3 harris41 109: $scrout.=&selectbox('Limit by MIME type','mime',
1.11 ! harris41 110: $ENV{'form.mime'},%mimetag);
! 111:
! 112: $ENV{'form.language'}='any' unless length($ENV{'form.language'});
1.3 harris41 113:
114: $scrout.=&selectbox('Limit by language','language',
1.11 ! harris41 115: $ENV{'form.language'},%language);
1.3 harris41 116:
1.8 harris41 117:
118: # ------------------------------------------------ Compute date selection boxes
119: $scrout.=<<CREATIONDATESTART;
1.3 harris41 120: <p>
121: <font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b>
122: </font>
123: <br>
1.8 harris41 124: between:
125: CREATIONDATESTART
1.11 ! harris41 126: $scrout.=&dateboxes('creationdatestart',1,1,1976,
! 127: $ENV{'form.creationdatestart_month'},
! 128: $ENV{'form.creationdatestart_day'},
! 129: $ENV{'form.creationdatestart_year'},
! 130: );
1.8 harris41 131: $scrout.=<<CREATIONDATEEND;
132: and:
133: CREATIONDATEEND
1.11 ! harris41 134: $scrout.=&dateboxes('creationdateend',12,31,2051,
! 135: $ENV{'form.creationdateend_month'},
! 136: $ENV{'form.creationdateend_day'},
! 137: $ENV{'form.creationdateend_year'},
! 138: );
1.8 harris41 139: $scrout.="</p>";
140:
141: $scrout.=<<LASTREVISIONDATESTART;
142: <p>
143: <font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE:
144: </b></font>
145: <br>between:
146: LASTREVISIONDATESTART
1.11 ! harris41 147: $scrout.=&dateboxes('lastrevisiondatestart',1,1,1976,
! 148: $ENV{'form.lastrevisiondatestart_month'},
! 149: $ENV{'form.lastrevisiondatestart_day'},
! 150: $ENV{'form.lastrevisiondatestart_year'},
! 151: );
1.8 harris41 152: $scrout.=<<LASTREVISIONDATEEND;
153: and:
154: LASTREVISIONDATEEND
1.11 ! harris41 155: $scrout.=&dateboxes('lastrevisiondateend',12,31,2051,
! 156: $ENV{'form.lastrevisiondateend_month'},
! 157: $ENV{'form.lastrevisiondateend_day'},
! 158: $ENV{'form.lastrevisiondateend_year'},
! 159: );
1.8 harris41 160: $scrout.='</p>';
161:
162: $scrout.=&searchphrasefield('Limit by publisher/owner','owner',
1.11 ! harris41 163: $ENV{'form.owner'});
! 164: # $metadatafields{'owner'});
1.8 harris41 165:
1.11 ! harris41 166: $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'});
1.8 harris41 167: $scrout.=&selectbox('Limit by copyright/distribution','copyright',
1.11 ! harris41 168: $ENV{'form.copyright'},%cprtag);
1.8 harris41 169:
170: # ---------------------------------------------------------------- Print screen
171: $r->print(<<ENDDOCUMENT);
172: <html>
173: <head>
174: <title>The LearningOnline Network with CAPA</title>
175: </head>
176: <body bgcolor="#FFFFFF">
177: <img align=right src=/adm/lonIcons/lonlogos.gif>
178: <h1>Search Catalog</h1>
179: <form method="post" action="/adm/searchcat">
180: $hidden
181: <hr>
182: <h3>Basic Search</h3>
183: <p>
184: Enter terms or phrases separated by search operators
185: such as AND or OR then press SEARCH below. Terms should be specific
186: to the title, author, subject, notes, or abstract information associated
187: with a resource.
188: <br>
1.11 ! harris41 189: ENDDOCUMENT
! 190: $r->print(&simpletextfield('basicexp',$ENV{'form.basicexp'}));
! 191: $r->print(' ');
! 192: $r->print(&simplecheckbox('titleonly',$ENV{'form.titleonly'}));
! 193: $r->print('<font color="#800000">Title only</font> ');
! 194: $r->print(&simplecheckbox('allversions',$ENV{'form.allversions'}));
! 195: $r->print(<<ENDDOCUMENT);
! 196: <font color="#800000">Search historic archives</font>
1.8 harris41 197: <br>
198: <input type="submit" name="basicsubmit" value="SEARCH">
199: <input type="reset" name="reset" value="RESET">
200: <input type="button" name="close" value="CLOSE" onClick="self.close()">
201: </p>
202: <hr>
203: <h3>Advanced Search</h3>
204: $scrout
205: <p>
206: <input type="submit" name="advancedsubmit" value="SEARCH">
207: <input type="reset" name="reset" value="RESET">
208: <input type="button" name="close" value="CLOSE" onClick="self.close()">
1.3 harris41 209: </p>
1.8 harris41 210: </form>
211: </body>
212: </html>
213: ENDDOCUMENT
214: return OK;
215: }
216:
217: # --------------------------------------------------------- Various form fields
218:
219: sub textfield {
220: my ($title,$name,$value)=@_;
221: return "\n<p><b>$title:</b><br>".
222: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
223: }
224:
1.11 ! harris41 225: sub simpletextfield {
! 226: my ($name,$value)=@_;
! 227: return '<input type=text name="'.$name.'" size=20 value="'.$value.'">';
! 228: }
! 229:
! 230: sub simplecheckbox {
! 231: my ($name,$value)=@_;
! 232: my $checked='';
! 233: $checked="CHECKED" if $value eq 'on';
! 234: return '<input type=checkbox name="'.$name.'" '. $checked . '>';
! 235: }
! 236:
1.8 harris41 237: sub searchphrasefield {
238: my ($title,$name,$value)=@_;
239: my $instruction=<<END;
240: Enter terms or phrases separated by search operators such
241: as AND or OR.
242: END
243: my $uctitle=uc($title);
244: return "\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:</b>".
245: "</FONT> $instruction<br>".
246: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
247: }
1.3 harris41 248:
1.8 harris41 249: sub dateboxes {
1.11 ! harris41 250: my ($name,$defaultmonth,$defaultday,$defaultyear,
! 251: $currentmonth,$currentday,$currentyear)=@_;
! 252: ($defaultmonth,$defaultday,$defaultyear)=('','','');
! 253: my $month=<<END;
1.8 harris41 254: <select name="${name}_month">
1.11 ! harris41 255: <option value='$defaultmonth'> </option>
! 256: <option value="1">January</option>
! 257: <option value="2">February</option>
! 258: <option value="3">March</option>
! 259: <option value="4">April</option>
! 260: <option value="5">May</option>
! 261: <option value="6">June</option>
! 262: <option value="7">July</option>
! 263: <option value="8">August</option>
! 264: <option value="9">September</option>
1.3 harris41 265: <option value="10">October</option>
266: <option value="11">November</option>
267: <option value="12">December</option>
268: </select>
1.11 ! harris41 269: END
! 270: $month=~s/(\"$currentmonth\")/$1 SELECTED/ if length($currentmonth);
! 271: my $day=<<END;
1.8 harris41 272: <select name="${name}_day">
1.11 ! harris41 273: <option value='$defaultday'> </option>
! 274: <option value="1">1</option>
! 275: <option value="2">2</option>
! 276: <option value="3">3</option>
! 277: <option value="4">4</option>
! 278: <option value="5">5</option>
! 279: <option value="6">6</option>
! 280: <option value="7">7</option>
! 281: <option value="8">8</option>
! 282: <option value="9">9</option>
! 283: <option value="10">10</option>
! 284: <option value="11">11</option>
! 285: <option value="12">12</option>
! 286: <option value="13">13</option>
! 287: <option value="14">14</option>
! 288: <option value="15">15</option>
! 289: <option value="16">16</option>
! 290: <option value="17">17</option>
! 291: <option value="18">18</option>
! 292: <option value="19">19</option>
! 293: <option value="20">20</option>
! 294: <option value="21">21</option>
! 295: <option value="22">22</option>
! 296: <option value="23">23</option>
! 297: <option value="24">24</option>
! 298: <option value="25">25</option>
! 299: <option value="26">26</option>
! 300: <option value="27">27</option>
! 301: <option value="28">28</option>
! 302: <option value="29">29</option>
! 303: <option value="30">30</option>
! 304: <option value="31">31</option>
1.3 harris41 305: </select>
1.11 ! harris41 306: END
! 307: $day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday);
! 308: my $year=<<END;
1.8 harris41 309: <select name="${name}_year">
1.11 ! harris41 310: <option value='$defaultyear'> </option>
! 311: <option value="1976">1976</option>
! 312: <option value="1977">1977</option>
! 313: <option value="1978">1978</option>
! 314: <option value="1979">1979</option>
! 315: <option value="1980">1980</option>
! 316: <option value="1981">1981</option>
! 317: <option value="1982">1982</option>
! 318: <option value="1983">1983</option>
! 319: <option value="1984">1984</option>
! 320: <option value="1985">1985</option>
! 321: <option value="1986">1986</option>
! 322: <option value="1987">1987</option>
! 323: <option value="1988">1988</option>
! 324: <option value="1989">1989</option>
! 325: <option value="1990">1990</option>
! 326: <option value="1991">1991</option>
! 327: <option value="1992">1992</option>
! 328: <option value="1993">1993</option>
! 329: <option value="1994">1994</option>
! 330: <option value="1995">1995</option>
! 331: <option value="1996">1996</option>
! 332: <option value="1997">1997</option>
! 333: <option value="1998">1998</option>
! 334: <option value="1999">1999</option>
! 335: <option value="2000">2000</option>
! 336: <option value="2001">2001</option>
! 337: <option value="2002">2002</option>
! 338: <option value="2003">2003</option>
! 339: <option value="2004">2004</option>
! 340: <option value="2005">2005</option>
! 341: <option value="2006">2006</option>
! 342: <option value="2007">2007</option>
! 343: <option value="2008">2008</option>
! 344: <option value="2009">2009</option>
! 345: <option value="2010">2010</option>
! 346: <option value="2011">2011</option>
! 347: <option value="2012">2012</option>
! 348: <option value="2013">2013</option>
! 349: <option value="2014">2014</option>
! 350: <option value="2015">2015</option>
! 351: <option value="2016">2016</option>
! 352: <option value="2017">2017</option>
! 353: <option value="2018">2018</option>
! 354: <option value="2019">2019</option>
! 355: <option value="2020">2020</option>
! 356: <option value="2021">2021</option>
! 357: <option value="2022">2022</option>
! 358: <option value="2023">2023</option>
! 359: <option value="2024">2024</option>
! 360: <option value="2025">2025</option>
! 361: <option value="2026">2026</option>
! 362: <option value="2027">2027</option>
! 363: <option value="2028">2028</option>
! 364: <option value="2029">2029</option>
! 365: <option value="2030">2030</option>
! 366: <option value="2031">2031</option>
! 367: <option value="2032">2032</option>
! 368: <option value="2033">2033</option>
! 369: <option value="2034">2034</option>
! 370: <option value="2035">2035</option>
! 371: <option value="2036">2036</option>
! 372: <option value="2037">2037</option>
! 373: <option value="2038">2038</option>
! 374: <option value="2039">2039</option>
! 375: <option value="2040">2040</option>
! 376: <option value="2041">2041</option>
! 377: <option value="2042">2042</option>
! 378: <option value="2043">2043</option>
! 379: <option value="2044">2044</option>
! 380: <option value="2045">2045</option>
! 381: <option value="2046">2046</option>
! 382: <option value="2047">2047</option>
! 383: <option value="2048">2048</option>
! 384: <option value="2049">2049</option>
! 385: <option value="2050">2050</option>
! 386: <option value="2051">2051</option>
1.3 harris41 387: </select>
388: END
1.11 ! harris41 389: $year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear);
! 390: return "$month$day$year";
1.3 harris41 391: }
392:
393: sub selectbox {
394: my ($title,$name,$value,%options)=@_;
395: my $uctitle=uc($title);
396: my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:".
397: "</b></font><br>".'<select name="'.$name.'">';
398: map {
399: $selout.='<option value="'.$_.'"';
400: if ($_ eq $value) { $selout.=' selected'; }
401: $selout.='>'.$options{$_}.'</option>';
402: } sort keys %options;
403: return $selout.'</select>';
1.6 harris41 404: }
405:
406: # --------------------------------------------------- Performing a basic search
407: sub basicsearch {
408: my ($r,$expression)=@_;
409:
410: my $query=$expression;
411: $query="select * from metadata where concat(title,\" \",author) like '\%$expression\%'";
412: my $reply=&Apache::lonnet::reply("querysend:$query",'msul3');
413:
414: my @results;
415:
416: my $replyfile='';
417: $reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting
418: $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1;
419: $reply=~/(.*?)\_/;
420: my $hostname=$1;
421:
422: {
423: while (1) {
424: last if -e $replyfile;
425: sleep 1;
426: }
427: # QUESTION: how should I handle this error condition..
428: # I'm sure there is syntax elsewhere I can use..
429: my $fh=Apache::File->new($replyfile) or
430: ($r->print('file cannot be opened') and return OK);
431: @results=<$fh>;
432: }
433:
434: my $compiledresult='';
435:
436: foreach my $result (@results) {
1.9 harris41 437: my ($title,$author,$subject,$url,$keywords,$version,
438: $notes,$abstract,$mime,$lang,
1.6 harris41 439: $creationdate,$lastrevisiondate,$owner,$copyright
440: )=map {&Apache::lonnet::unescape($_)} (split(/\,/,$result));
441: my $shortabstract=$abstract;
442: $shortabstract=substr($abstract,0,200) if length($abstract)>200;
1.8 harris41 443: $compiledresult.=<<END;
1.6 harris41 444: <p>
1.8 harris41 445: END
446: $compiledresult.=<<END if $ENV{'form.catalogmode'} eq 'interactive';
447: <font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT"
1.10 harris41 448: onClick="javascript:select_data('$title','$url')">
1.8 harris41 449: </font>
450: <br>
451: END
452: $compiledresult.=<<END;
1.9 harris41 453: <b>URL: </b> $url<br>
1.6 harris41 454: <b>Title:</b> $title<br>
455: <b>Author(s):</b> $author<br>
456: <b>Subject:</b> $subject<br>
1.9 harris41 457: <b>Keyword(s):</b> $keywords<br>
1.6 harris41 458: <b>Notes:</b> $notes<br>
459: <b>Abstract:</b> $shortabstract<br>
460: <b>MIME Type:</b> $mimetag{$mime}<br>
461: <b>Language:</b> $language{$lang}<br>
462: <b>Creation Date:</b> $creationdate<br>
463: <b>Last Revision Date:</b> $lastrevisiondate<br>
464: <b>Publisher/Owner:</b> $owner<br>
465: <b>Copyright/Distribution:</b> $copyright<br>
466: <b>Repository Location:</b> $hostname
467: </p>
468: END
469: }
470:
471: unless ($compiledresult) {
472: $compiledresult="There were no results that matched your query";
473: }
474:
1.9 harris41 475: # make query information persistent to allow for subsequent revision
476: my $persistent='';
477: map {
478: if (/^form\./ && !/submit/) {
479: my $name=$_;
480: my $key=$name;
481: $name=~s/^form\.//;
482: $persistent.=<<END;
483: <INPUT TYPE='hidden' NAME='$name' VALUE='$ENV{$key}'>
484: END
485: }
486: } (keys %ENV);
487:
1.8 harris41 488: $r->print(<<BEGINNING);
1.6 harris41 489: <html>
490: <head>
491: <title>The LearningOnline Network with CAPA</title>
1.8 harris41 492: BEGINNING
493: $r->print(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'interactive';
494: <script>
495: function select_data(title,url) {
496: changeTitle(title);
497: changeURL(url);
498: }
499: function changeTitle(val) {
500: if (opener.inf.document.forms.resinfo.elements.t) {
501: opener.inf.document.forms.resinfo.elements.t.value=val;
502: }
503: }
504: function changeURL(val) {
505: if (opener.inf.document.forms.resinfo.elements.u) {
506: opener.inf.document.forms.resinfo.elements.u.value=val;
507: }
508: }
509: </script>
510: SCRIPT
511: $r->print(<<RESULTS);
1.6 harris41 512: </head>
513: <body bgcolor="#ffffff">
514: <img align=right src=/adm/lonIcons/lonlogos.gif>
515: <h1>Search Catalog</h1>
516: <form method="post" action="/adm/searchcat">
1.9 harris41 517: <input type='button' value='Revise search request'
518: onClick='this.form.submit();'>
1.11 ! harris41 519: <input type='button' value='CLOSE'
! 520: onClick='self.close();'>
1.9 harris41 521: $persistent
1.6 harris41 522: <hr>
523: <h3>Search Query</h3>
524: <p>
1.8 harris41 525: <b>Basic search:</b> $expression
1.6 harris41 526: </p>
527: <h3>Search Results</h3>
528: $compiledresult
529: </body>
530: </html>
531: RESULTS
532:
533: return OK;
1.3 harris41 534: }
1.1 www 535:
536: 1;
537: __END__
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