1: # The LearningOnline Network
2: # Printout
3: #
4: # (Internal Server Error Handler
5: #
6: # (Login Screen
7: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
8: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
9: #
10: # 3/1/1 Gerd Kortemeyer)
11: #
12: # 3/1 Gerd Kortemeyer
13: #
14: # 9/17 Alex Sakharuk
15: #
16: package Apache::lonprintout;
17:
18: use strict;
19: use Apache::Constants qw(:common);
20: use Apache::lonxml;
21: use Apache::lonnet;
22: use Apache::File();
23:
24:
25:
26: sub headerform {
27: my $r = shift;
28: $r->print(<<ENDHEADER);
29: <html>
30: <head>
31: <title>LON-CAPA output for printing</title>
32: </head>
33: <body bgcolor="FFFFFF">
34: <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">
35: <h1>Printout:</h1><br></br>
36: ENDHEADER
37: }
38:
39:
40: sub menu_for_output {
41: my $r = shift;
42: $r->print(<<ENDMENUOUT);
43: <input type="hidden" name="phase" value="two">
44: <input type="radio" name="choice" value="Standard LaTeX output for current document"> Standard LaTeX output for current document<br></br>
45: <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence"> Standard LaTeX output for the primary sequence<br></br>
46: <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence"> Standard LaTeX output for the top level sequence<br></br>
47: <input type="submit" value="Please make a choice">
48: </form>
49: </body>
50: </html>
51: ENDMENUOUT
52: }
53:
54:
55: sub output_data {
56: my $r = shift;
57: $r->print(<<ENDPART);
58: <html>
59: <head>
60: <title>LON-CAPA output for printing</title>
61: </head>
62: <body bgcolor="FFFFFF">
63: <hr>
64: ENDPART
65:
66: my $choice = $ENV{'form.choice'};
67: my $result = '';
68: my %mystyle;
69: my $filename;
70:
71: if ($choice eq 'Standard LaTeX output for current document') {
72: my $file=&Apache::lonnet::filelocation("",'/res/'.$ENV{'request.ambiguous'});
73: my $filecontents=&Apache::lonnet::getfile($file);
74: $result = &Apache::lonxml::xmlparse('tex',$filecontents,'',%mystyle);
75: } elsif ($choice eq 'Standard LaTeX output for the primary sequence') {
76: my @master_seq = ();
77: my $keyword = 0;
78: my $output_seq = '';
79: my $current_file = '/res/'.$ENV{'request.ambiguous'};
80: $current_file =~ s/(\/res\/physnet\/physnet)(\/m\d+)\/(.*)/$1$2$2\.sequence/;
81: while ($current_file ne '') {
82: my $file=&Apache::lonnet::filelocation("",$current_file);
83: my $filecontents=&Apache::lonnet::getfile($file);
84: my @file_seq = &content_map($filecontents);
85: if (defined @file_seq) {
86: #-- adding an additional array to the master one
87: if (defined @master_seq) {
88: my $old_value = $#master_seq;
89: my $total_value = $#master_seq + $#file_seq +2;
90: for (my $j=0; $j<=$old_value-$keyword+1; $j++) {
91: $master_seq[$total_value-$j] = $master_seq[$old_value-$j];
92: }
93: for (my $j=0; $j<=$#file_seq; $j++){
94: $master_seq[$keyword+$j] = $file_seq[$j];
95: }
96: @file_seq = ();
97: $keyword = 0;
98: } else {
99: @master_seq = @file_seq;
100: @file_seq = ();
101: }
102: }
103: #-- checking wether .sequence file is among the set of files
104: $current_file = '';
105: for (my $i=0; $i<=$#file_seq; $i++) {
106: $_ = $file_seq[$i];
107: if (m/(.*)\.sequence/) {
108: $current_file = $_;
109: $keyword = $i;
110: last;
111: }
112: }
113: }
114: #-- produce an output string
115: for (my $i=0;$i<=$#master_seq;$i++) {
116: $_ = $master_seq[$i];
117: m/\"(.*)\"/;
118: if (index($1,'-tc.xml',0)==-1) {
119: my $file=&Apache::lonnet::filelocation("",$1);
120: my $filecontents=&Apache::lonnet::getfile($file);
121: $output_seq .= $filecontents;
122: }
123: }
124: #-- cleanup of output string (temporary cbi-specific)
125: $output_seq =~ s/<physnet>//g;
126: $output_seq =~ s/<\/physnet>//g;
127: $output_seq = '<physnet>'.$output_seq.' </physnet>';
128: #-- final accord
129: $result = &Apache::lonxml::xmlparse('tex',$output_seq,'',%mystyle);
130: }
131: #-- writing .tex file in prtspool
132: {
133: my $temp_file;
134: $filename = "/home/httpd/prtspool/$ENV{'environment.firstname'}$ENV{'environment.lastname'}temp$ENV{'user.login.time'}.tex";
135: unless ($temp_file = Apache::File->new('>'.$filename)) {
136: $r->log_error("Couldn't open $filename for output $!");
137: return SERVER_ERROR;
138: }
139: print $temp_file $result;
140: }
141: $r->print(<<FINALEND);
142: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename">
143: </body>
144: </html>
145: FINALEND
146: }
147:
148:
149:
150:
151: sub content_map {
152: #-- find a list of files to print
153: my $map_string = shift;
154: my @number_seq = ();
155: my @file_seq = ();
156: my $startlink = index($map_string,'<link',0);
157: my $endlink = index($map_string,'</link>',$startlink);
158: my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
159: $_ = $chunk;
160: m/from=\"(\d+)\"/;
161: push @number_seq,$1;
162: while ($startlink != -1) {
163: $endlink = index($map_string,'</link>',$startlink);
164: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
165: substr($map_string,$startlink,$endlink-$startlink+7) = '';
166: $_ = $chunk;
167: m/to=\"(\d+)\"/;
168: push @number_seq,$1;
169: $startlink = index($map_string,'<link from="'.$1.'"',$startlink);
170: }
171: my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
172: while ($stalink != -1) {
173: $startlink = rindex($map_string,'<link ',$stalink);
174: $endlink = index($map_string,'</link>',$startlink);
175: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
176: substr($map_string,$startlink,$endlink-$startlink+7) = '';
177: $_ = $chunk;
178: m/from=\"(\d+)\"/;
179: unshift @number_seq,$1;
180: $stalink = index($map_string,' to="'.$number_seq[0].'"',0);
181: }
182: for (my $i=0;$i<=$#number_seq;$i++) {
183: $stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
184: $startlink = index($map_string,'src="',$stalink);
185: $startlink = index($map_string,'"',$startlink);
186: $endlink = index($map_string,'"',$startlink+1);
187: $chunk = substr($map_string,$startlink,$endlink-$startlink+1);
188: push @file_seq,$chunk;
189: }
190: return @file_seq;
191: }
192:
193:
194:
195: sub handler {
196:
197: my $r = shift;
198: $r->content_type('text/html');
199: $r->send_http_header;
200:
201: #-- start form
202: &headerform($r);
203: #-- menu for output
204: unless ($ENV{'form.phase'}) {
205: &menu_for_output($r);
206: }
207: #-- core part
208: if ($ENV{'form.phase'} eq 'two') {
209: &output_data($r);
210:
211: }
212: return OK;
213:
214: }
215:
216: 1;
217: __END__
218:
219:
220: # my $ere;
221: # foreach $ere (%ENV) {
222: # $r->print(' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n");
223: # }
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