version 1.77, 2003/02/12 01:59:34
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version 1.125, 2003/10/04 23:47:44
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Line 47 Apache::loncommon - pile of common routi
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Line 47 Apache::loncommon - pile of common routi
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=head1 SYNOPSIS |
=head1 SYNOPSIS |
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Referenced by other mod_perl Apache modules. |
Common routines for manipulating connections, student answers, |
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domains, common Javascript fragments, etc. |
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Invocation: |
=head1 OVERVIEW |
&Apache::loncommon::SUBROUTINENAME(ARGUMENTS); |
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=head1 INTRODUCTION |
A collection of commonly used subroutines that don't have a natural |
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home anywhere else. This collection helps remove |
Common collection of used subroutines. This collection helps remove |
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redundancy from other modules and increase efficiency of memory usage. |
redundancy from other modules and increase efficiency of memory usage. |
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Current things done: |
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Makes a table out of the previous homework attempts |
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Inputs result_from_symbread, user, domain, course_id |
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Reads in non-network-related .tab files |
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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=head2 General Subroutines |
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=over 4 |
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=cut |
=cut |
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# End of POD header |
# End of POD header |
Line 79 use strict;
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Line 65 use strict;
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use Apache::lonnet(); |
use Apache::lonnet(); |
use GDBM_File; |
use GDBM_File; |
use POSIX qw(strftime mktime); |
use POSIX qw(strftime mktime); |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common :http :methods); |
use Apache::lonmsg(); |
use Apache::lonmsg(); |
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use Apache::lonmenu(); |
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use Apache::lonlocal; |
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my $readit; |
my $readit; |
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=pod |
=pod |
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=item Global Variables |
=head1 Global Variables |
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=over 4 |
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=cut |
=cut |
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# ----------------------------------------------- Filetypes/Languages/Copyright |
# ----------------------------------------------- Filetypes/Languages/Copyright |
my %language; |
my %language; |
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my %supported_language; |
my %cprtag; |
my %cprtag; |
my %fe; my %fd; |
my %fe; my %fd; |
my %category_extensions; |
my %category_extensions; |
Line 102 my %designhash;
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Line 91 my %designhash;
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# ---------------------------------------------- Thesaurus variables |
# ---------------------------------------------- Thesaurus variables |
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# FIXME: I don't think it's necessary to document these things; |
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# they're privately used - Jeremy |
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=pod |
=pod |
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=item %Keywords |
=over 4 |
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=item * %Keywords |
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A hash used by &keyword to determine if a word is considered a keyword. |
A hash used by &keyword to determine if a word is considered a keyword. |
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=item $thesaurus_db_file |
=item * $thesaurus_db_file |
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Scalar containing the full path to the thesaurus database. |
Scalar containing the full path to the thesaurus database. |
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=back |
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=cut |
=cut |
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my %Keywords; |
my %Keywords; |
my $thesaurus_db_file; |
my $thesaurus_db_file; |
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# ----------------------------------------------------------------------- BEGIN |
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# FIXME: I don't think this needs to be documented, it prepares |
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# private data structures - Jeremy |
=pod |
=pod |
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=back |
=head1 General Subroutines |
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=cut |
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# ----------------------------------------------------------------------- BEGIN |
=over 4 |
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=pod |
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=item BEGIN() |
=item * BEGIN() |
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Initialize values from language.tab, copyright.tab, filetypes.tab, |
Initialize values from language.tab, copyright.tab, filetypes.tab, |
thesaurus.tab, and filecategories.tab. |
thesaurus.tab, and filecategories.tab. |
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=back |
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=cut |
=cut |
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# ----------------------------------------------------------------------- BEGIN |
# ----------------------------------------------------------------------- BEGIN |
Line 150 BEGIN {
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Line 147 BEGIN {
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while (<$fh>) { |
while (<$fh>) { |
next if /^\#/; |
next if /^\#/; |
chomp; |
chomp; |
my ($key,$val)=(split(/\s+/,$_,2)); |
my ($key,$two,$country,$three,$enc,$val,$sup)=(split(/\t/,$_)); |
$language{$key}=$val; |
$language{$key}=$val.' - '.$enc; |
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if ($sup) { |
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$supported_language{$key}=$sup; |
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} |
} |
} |
} |
} |
} |
} |
Line 227 BEGIN {
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Line 227 BEGIN {
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} # end of unless($readit) |
} # end of unless($readit) |
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} |
} |
# ============================================================= END BEGIN BLOCK |
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############################################################### |
############################################################### |
## HTML and Javascript Helper Functions ## |
## HTML and Javascript Helper Functions ## |
############################################################### |
############################################################### |
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=pod |
=pod |
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=item browser_and_searcher_javascript |
=head1 HTML and Javascript Functions |
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=over 4 |
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=item * browser_and_searcher_javascript () |
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Returns scalar containing javascript to open a browser window |
X<browsing, javascript>X<searching, javascript>Returns a string |
or a searcher window. Also creates |
containing javascript with two functions, C<openbrowser> and |
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C<opensearcher>. Returned string does not contain E<lt>scriptE<gt> |
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tags. |
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=over 4 |
=over 4 |
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=item openbrowser(formname,elementname,only,omit) [javascript] |
=item * openbrowser(formname,elementname,only,omit) [javascript] |
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inputs: formname, elementname, only, omit |
inputs: formname, elementname, only, omit |
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Line 254 with the given extension. Can be a comm
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Line 260 with the given extension. Can be a comm
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Specifying 'omit' will restrict the browser to NOT displaying files |
Specifying 'omit' will restrict the browser to NOT displaying files |
with the given extension. Can be a comma seperated list. |
with the given extension. Can be a comma seperated list. |
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=item opensearcher(formname, elementname) [javascript] |
=item * opensearcher(formname, elementname) [javascript] |
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Inputs: formname, elementname |
Inputs: formname, elementname |
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Line 265 of the element the selection from the se
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Line 271 of the element the selection from the se
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=cut |
=cut |
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############################################################### |
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sub browser_and_searcher_javascript { |
sub browser_and_searcher_javascript { |
return <<END; |
return <<END; |
var editbrowser = null; |
var editbrowser = null; |
Line 310 END
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Line 315 END
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} |
} |
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sub studentbrowser_javascript { |
sub studentbrowser_javascript { |
unless ($ENV{'request.course.id'}) { return ''; } |
unless ( |
unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) { |
(($ENV{'request.course.id'}) && |
return ''; |
(&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) |
} |
|| ($ENV{'request.role'}=~/^(au|dc|su)/) |
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) { return ''; } |
return (<<'ENDSTDBRW'); |
return (<<'ENDSTDBRW'); |
<script type="text/javascript" language="Javascript" > |
<script type="text/javascript" language="Javascript" > |
var stdeditbrowser; |
var stdeditbrowser; |
function openstdbrowser(formname,uname,udom) { |
function openstdbrowser(formname,uname,udom,roleflag) { |
var url = '/adm/pickstudent?'; |
var url = '/adm/pickstudent?'; |
var filter; |
var filter; |
eval('filter=document.'+formname+'.'+uname+'.value;'); |
eval('filter=document.'+formname+'.'+uname+'.value;'); |
Line 328 sub studentbrowser_javascript {
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Line 334 sub studentbrowser_javascript {
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} |
} |
url += 'form=' + formname + '&unameelement='+uname+ |
url += 'form=' + formname + '&unameelement='+uname+ |
'&udomelement='+udom; |
'&udomelement='+udom; |
var title = 'Student Browser'; |
if (roleflag) { url+="&roles=1"; } |
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var title = 'Student_Browser'; |
var options = 'scrollbars=1,resizable=1,menubar=0'; |
var options = 'scrollbars=1,resizable=1,menubar=0'; |
options += ',width=700,height=600'; |
options += ',width=700,height=600'; |
stdeditbrowser = open(url,title,options,'1'); |
stdeditbrowser = open(url,title,options,'1'); |
Line 339 ENDSTDBRW
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Line 346 ENDSTDBRW
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} |
} |
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sub selectstudent_link { |
sub selectstudent_link { |
my ($form,$unameele,$udomele)=@_; |
my ($form,$unameele,$udomele)=@_; |
unless ($ENV{'request.course.id'}) { return ''; } |
if ($ENV{'request.course.id'}) { |
unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) { |
unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) { |
return ''; |
return ''; |
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} |
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return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele. |
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'","'.$udomele.'");'."'>".&mt('Select User')."</a>"; |
} |
} |
return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele. |
if ($ENV{'request.role'}=~/^(au|dc|su)/) { |
'","'.$udomele.'");'."'>Select</a>"; |
return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele. |
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'","'.$udomele.'",1);'."'>".&mt('Select User')."</a>"; |
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} |
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return ''; |
} |
} |
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############################################################### |
sub coursebrowser_javascript { |
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return (<<'ENDSTDBRW'); |
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<script type="text/javascript" language="Javascript" > |
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var stdeditbrowser; |
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function opencrsbrowser(formname,uname,udom) { |
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var url = '/adm/pickcourse?'; |
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var filter; |
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if (filter != null) { |
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if (filter != '') { |
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url += 'filter='+filter+'&'; |
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} |
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} |
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url += 'form=' + formname + '&cnumelement='+uname+ |
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'&cdomelement='+udom; |
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var title = 'Course_Browser'; |
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var options = 'scrollbars=1,resizable=1,menubar=0'; |
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options += ',width=700,height=600'; |
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stdeditbrowser = open(url,title,options,'1'); |
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stdeditbrowser.focus(); |
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} |
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</script> |
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ENDSTDBRW |
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} |
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sub selectcourse_link { |
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my ($form,$unameele,$udomele)=@_; |
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return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele. |
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'","'.$udomele.'");'."'>".&mt('Select Course')."</a>"; |
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} |
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=pod |
=pod |
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=item linked_select_forms(...) |
=item * linked_select_forms(...) |
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linked_select_forms returns a string containing a <script></script> block |
linked_select_forms returns a string containing a <script></script> block |
and html for two <select> menus. The select menus will be linked in that |
and html for two <select> menus. The select menus will be linked in that |
Line 364 linked_select_forms takes the following
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Line 405 linked_select_forms takes the following
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=over 4 |
=over 4 |
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=item $formname, the name of the <form> tag |
=item * $formname, the name of the <form> tag |
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=item $middletext, the text which appears between the <select> tags |
=item * $middletext, the text which appears between the <select> tags |
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=item $firstdefault, the default value for the first menu |
=item * $firstdefault, the default value for the first menu |
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=item $firstselectname, the name of the first <select> tag |
=item * $firstselectname, the name of the first <select> tag |
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=item $secondselectname, the name of the second <select> tag |
=item * $secondselectname, the name of the second <select> tag |
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=item $hashref, a reference to a hash containing the data for the menus. |
=item * $hashref, a reference to a hash containing the data for the menus. |
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=back |
=back |
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Line 385 first menu value is given in $menu{$choi
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Line 426 first menu value is given in $menu{$choi
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and text for the second menu are given in the hash pointed to by |
and text for the second menu are given in the hash pointed to by |
$menu{$choice1}->{'select2'}. |
$menu{$choice1}->{'select2'}. |
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my %menu = ( A1 => { text =>"Choice A1" , |
my %menu = ( A1 => { text =>"Choice A1" , |
default => "B3", |
default => "B3", |
select2 => { |
select2 => { |
B1 => "Choice B1", |
B1 => "Choice B1", |
B2 => "Choice B2", |
B2 => "Choice B2", |
B3 => "Choice B3", |
B3 => "Choice B3", |
B4 => "Choice B4" |
B4 => "Choice B4" |
} |
} |
}, |
}, |
A2 => { text =>"Choice A2" , |
A2 => { text =>"Choice A2" , |
default => "C2", |
default => "C2", |
select2 => { |
select2 => { |
C1 => "Choice C1", |
C1 => "Choice C1", |
C2 => "Choice C2", |
C2 => "Choice C2", |
C3 => "Choice C3" |
C3 => "Choice C3" |
} |
} |
}, |
}, |
A3 => { text =>"Choice A3" , |
A3 => { text =>"Choice A3" , |
default => "D6", |
default => "D6", |
select2 => { |
select2 => { |
D1 => "Choice D1", |
D1 => "Choice D1", |
D2 => "Choice D2", |
D2 => "Choice D2", |
D3 => "Choice D3", |
D3 => "Choice D3", |
D4 => "Choice D4", |
D4 => "Choice D4", |
D5 => "Choice D5", |
D5 => "Choice D5", |
D6 => "Choice D6", |
D6 => "Choice D6", |
D7 => "Choice D7" |
D7 => "Choice D7" |
} |
} |
} |
} |
); |
); |
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=cut |
=cut |
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# ------------------------------------------------ |
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sub linked_select_forms { |
sub linked_select_forms { |
my ($formname, |
my ($formname, |
$middletext, |
$middletext, |
Line 481 END
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Line 520 END
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foreach my $value (sort(keys(%$hashref))) { |
foreach my $value (sort(keys(%$hashref))) { |
$result.=" <option value=\"$value\" "; |
$result.=" <option value=\"$value\" "; |
$result.=" selected=\"true\" " if ($value eq $firstdefault); |
$result.=" selected=\"true\" " if ($value eq $firstdefault); |
$result.=">$hashref->{$value}->{'text'}</option>\n"; |
$result.=">".&mt($hashref->{$value}->{'text'})."</option>\n"; |
} |
} |
$result .= "</select>\n"; |
$result .= "</select>\n"; |
my %select2 = %{$hashref->{$firstdefault}->{'select2'}}; |
my %select2 = %{$hashref->{$firstdefault}->{'select2'}}; |
Line 491 END
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Line 530 END
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foreach my $value (sort(keys(%select2))) { |
foreach my $value (sort(keys(%select2))) { |
$result.=" <option value=\"$value\" "; |
$result.=" <option value=\"$value\" "; |
$result.=" selected=\"true\" " if ($value eq $seconddefault); |
$result.=" selected=\"true\" " if ($value eq $seconddefault); |
$result.=">$select2{$value}</option>\n"; |
$result.=">".&mt($select2{$value})."</option>\n"; |
} |
} |
$result .= "</select>\n"; |
$result .= "</select>\n"; |
# return $debug; |
# return $debug; |
return $result; |
return $result; |
} # end of sub linked_select_forms { |
} # end of sub linked_select_forms { |
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############################################################### |
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=pod |
=pod |
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=item help_open_topic($topic, $text, $stayOnPage, $width, $height) |
=item * help_open_topic($topic, $text, $stayOnPage, $width, $height) |
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Returns a string corresponding to an HTML link to the given help $topic, where $topic corresponds to the name of a .tex file in /home/httpd/html/adm/help/tex, with underscores replaced by spaces. |
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$text will optionally be linked to the same topic, allowing you to link text in addition to the graphic. If you do not want to link text, but wish to specify one of the later parameters, pass an empty string. |
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$stayOnPage is a value that will be interpreted as a boolean. If true, the link will not open a new window. If false, the link will open a new window using Javascript. (Default is false.) |
Returns a string corresponding to an HTML link to the given help |
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$topic, where $topic corresponds to the name of a .tex file in |
$width and $height are optional numerical parameters that will override the width and height of the popped up window, which may be useful for certain help topics with big pictures included. |
/home/httpd/html/adm/help/tex, with underscores replaced by |
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spaces. |
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$text will optionally be linked to the same topic, allowing you to |
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link text in addition to the graphic. If you do not want to link |
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text, but wish to specify one of the later parameters, pass an |
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empty string. |
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$stayOnPage is a value that will be interpreted as a boolean. If true, |
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the link will not open a new window. If false, the link will open |
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a new window using Javascript. (Default is false.) |
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$width and $height are optional numerical parameters that will |
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override the width and height of the popped up window, which may |
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be useful for certain help topics with big pictures included. |
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=cut |
=cut |
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Line 518 sub help_open_topic {
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Line 565 sub help_open_topic {
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my ($topic, $text, $stayOnPage, $width, $height) = @_; |
my ($topic, $text, $stayOnPage, $width, $height) = @_; |
$text = "" if (not defined $text); |
$text = "" if (not defined $text); |
$stayOnPage = 0 if (not defined $stayOnPage); |
$stayOnPage = 0 if (not defined $stayOnPage); |
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if ($ENV{'browser.interface'} eq 'textual' || |
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$ENV{'environment.remote'} eq 'off' ) { |
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$stayOnPage=1; |
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} |
$width = 350 if (not defined $width); |
$width = 350 if (not defined $width); |
$height = 400 if (not defined $height); |
$height = 400 if (not defined $height); |
my $filename = $topic; |
my $filename = $topic; |
Line 540 sub help_open_topic {
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Line 591 sub help_open_topic {
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{ |
{ |
$template .= |
$template .= |
"<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>". |
"<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>". |
"<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</a>"; |
"<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>"; |
} |
} |
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# Add the graphic |
# Add the graphic |
$template .= <<"ENDTEMPLATE"; |
$template .= <<"ENDTEMPLATE"; |
<a href="$link"><image src="/adm/help/gif/smallHelp.gif" border="0" alt="(Help: $topic)" /></a> |
<a href="$link"><image src="/adm/help/gif/smallHelp.gif" border="0" alt="(Help: $topic)" /></a> |
ENDTEMPLATE |
ENDTEMPLATE |
if ($text ne '') { $template.='</font></td></tr></table>' }; |
if ($text ne '') { $template.='</td></tr></table>' }; |
return $template; |
return $template; |
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} |
} |
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# This is a quicky function for Latex cheatsheet editing, since it |
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# appears in at least four places |
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sub helpLatexCheatsheet { |
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my $other = shift; |
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my $addOther = ''; |
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if ($other) { |
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$addOther = Apache::loncommon::help_open_topic($other, shift, |
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undef, undef, 600) . |
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'</td><td>'; |
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} |
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return '<table><tr><td>'. |
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$addOther . |
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&Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols', |
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undef,undef,600) |
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.'</td><td>'. |
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&Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols', |
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undef,undef,600) |
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.'</td></tr></table>'; |
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} |
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=pod |
=pod |
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=item csv_translate($text) |
=item * csv_translate($text) |
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Translate $text to allow it to be output as a 'comma seperated values' |
Translate $text to allow it to be output as a 'comma seperated values' |
format. |
format. |
Line 568 sub csv_translate {
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Line 639 sub csv_translate {
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return $text; |
return $text; |
} |
} |
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=pod |
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=item * change_content_javascript(): |
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This and the next function allow you to create small sections of an |
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otherwise static HTML page that you can update on the fly with |
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Javascript, even in Netscape 4. |
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The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag) |
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must be written to the HTML page once. It will prove the Javascript |
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function "change(name, content)". Calling the change function with the |
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name of the section |
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you want to update, matching the name passed to C<changable_area>, and |
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the new content you want to put in there, will put the content into |
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that area. |
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B<Note>: Netscape 4 only reserves enough space for the changable area |
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to contain room for the original contents. You need to "make space" |
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for whatever changes you wish to make, and be B<sure> to check your |
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code in Netscape 4. This feature in Netscape 4 is B<not> powerful; |
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it's adequate for updating a one-line status display, but little more. |
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This script will set the space to 100% width, so you only need to |
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worry about height in Netscape 4. |
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Modern browsers are much less limiting, and if you can commit to the |
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user not using Netscape 4, this feature may be used freely with |
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pretty much any HTML. |
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=cut |
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sub change_content_javascript { |
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# If we're on Netscape 4, we need to use Layer-based code |
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if ($ENV{'browser.type'} eq 'netscape' && |
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$ENV{'browser.version'} =~ /^4\./) { |
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return (<<NETSCAPE4); |
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function change(name, content) { |
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doc = document.layers[name+"___escape"].layers[0].document; |
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doc.open(); |
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doc.write(content); |
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doc.close(); |
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} |
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NETSCAPE4 |
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} else { |
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# Otherwise, we need to use semi-standards-compliant code |
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# (technically, "innerHTML" isn't standard but the equivalent |
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# is really scary, and every useful browser supports it |
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return (<<DOMBASED); |
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function change(name, content) { |
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element = document.getElementById(name); |
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element.innerHTML = content; |
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} |
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DOMBASED |
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} |
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} |
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=pod |
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=item * changable_area($name, $origContent): |
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This provides a "changable area" that can be modified on the fly via |
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the Javascript code provided in C<change_content_javascript>. $name is |
|
the name you will use to reference the area later; do not repeat the |
|
same name on a given HTML page more then once. $origContent is what |
|
the area will originally contain, which can be left blank. |
|
|
|
=cut |
|
|
|
sub changable_area { |
|
my ($name, $origContent) = @_; |
|
|
|
if ($ENV{'browser.type'} eq 'netscape' && |
|
$ENV{'browser.version'} =~ /^4\./) { |
|
# If this is netscape 4, we need to use the Layer tag |
|
return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>"; |
|
} else { |
|
return "<span id='$name'>$origContent</span>"; |
|
} |
|
} |
|
|
|
=pod |
|
|
|
=back |
|
|
|
=cut |
|
|
############################################################### |
############################################################### |
## Home server <option> list generating code ## |
## Home server <option> list generating code ## |
############################################################### |
############################################################### |
#------------------------------------------- |
|
|
|
=pod |
=pod |
|
|
=item get_domains() |
=head1 Home Server option list generating code |
|
|
|
=over 4 |
|
|
|
=item * get_domains() |
|
|
Returns an array containing each of the domains listed in the hosts.tab |
Returns an array containing each of the domains listed in the hosts.tab |
file. |
file. |
Line 597 sub get_domains {
|
Line 756 sub get_domains {
|
|
|
=pod |
=pod |
|
|
=item select_dom_form($defdom,$name) |
=item * select_form($defdom,$name,%hash) |
|
|
|
Returns a string containing a <select name='$name' size='1'> form to |
|
allow a user to select options from a hash option_name => displayed text. |
|
See lonrights.pm for an example invocation and use. |
|
|
|
=cut |
|
|
|
#------------------------------------------- |
|
sub select_form { |
|
my ($def,$name,%hash) = @_; |
|
my $selectform = "<select name=\"$name\" size=\"1\">\n"; |
|
foreach (sort keys %hash) { |
|
$selectform.="<option value=\"$_\" ". |
|
($_ eq $def ? 'selected' : ''). |
|
">".&mt($hash{$_})."</option>\n"; |
|
} |
|
$selectform.="</select>"; |
|
return $selectform; |
|
} |
|
|
|
|
|
#------------------------------------------- |
|
|
|
=pod |
|
|
|
=item * select_dom_form($defdom,$name,$includeempty) |
|
|
Returns a string containing a <select name='$name' size='1'> form to |
Returns a string containing a <select name='$name' size='1'> form to |
allow a user to select the domain to preform an operation in. |
allow a user to select the domain to preform an operation in. |
See loncreateuser.pm for an example invocation and use. |
See loncreateuser.pm for an example invocation and use. |
|
|
|
If the $includeempty flag is set, it also includes an empty choice ("no domain |
|
selected"); |
|
|
=cut |
=cut |
|
|
#------------------------------------------- |
#------------------------------------------- |
sub select_dom_form { |
sub select_dom_form { |
my ($defdom,$name) = @_; |
my ($defdom,$name,$includeempty) = @_; |
my @domains = get_domains(); |
my @domains = get_domains(); |
|
if ($includeempty) { @domains=('',@domains); } |
my $selectdomain = "<select name=\"$name\" size=\"1\">\n"; |
my $selectdomain = "<select name=\"$name\" size=\"1\">\n"; |
foreach (@domains) { |
foreach (@domains) { |
$selectdomain.="<option value=\"$_\" ". |
$selectdomain.="<option value=\"$_\" ". |
Line 623 sub select_dom_form {
|
Line 812 sub select_dom_form {
|
|
|
=pod |
=pod |
|
|
=item get_library_servers($domain) |
=item * get_library_servers($domain) |
|
|
Returns a hash which contains keys like '103l3' and values like |
Returns a hash which contains keys like '103l3' and values like |
'kirk.lite.msu.edu'. All of the keys will be for machines in the |
'kirk.lite.msu.edu'. All of the keys will be for machines in the |
Line 647 sub get_library_servers {
|
Line 836 sub get_library_servers {
|
|
|
=pod |
=pod |
|
|
=item home_server_option_list($domain) |
=item * home_server_option_list($domain) |
|
|
returns a string which contains an <option> list to be used in a |
returns a string which contains an <option> list to be used in a |
<select> form input. See loncreateuser.pm for an example. |
<select> form input. See loncreateuser.pm for an example. |
Line 665 sub home_server_option_list {
|
Line 854 sub home_server_option_list {
|
} |
} |
return $result; |
return $result; |
} |
} |
|
|
|
=pod |
|
|
|
=back |
|
|
|
=cut |
|
|
############################################################### |
############################################################### |
## End of home server <option> list generating code ## |
## Decoding User Agent ## |
############################################################### |
############################################################### |
|
|
|
=pod |
|
|
|
=head1 Decoding the User Agent |
|
|
|
=over 4 |
|
|
|
=item * &decode_user_agent() |
|
|
|
Inputs: $r |
|
|
|
Outputs: |
|
|
|
=over 4 |
|
|
|
=item * $httpbrowser |
|
|
|
=item * $clientbrowser |
|
|
|
=item * $clientversion |
|
|
|
=item * $clientmathml |
|
|
|
=item * $clientunicode |
|
|
|
=item * $clientos |
|
|
|
=back |
|
|
|
=cut |
|
|
|
############################################################### |
|
############################################################### |
|
sub decode_user_agent { |
|
my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"}); |
|
my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"}); |
|
my $httpbrowser=$ENV{"HTTP_USER_AGENT"}; |
|
my $clientbrowser='unknown'; |
|
my $clientversion='0'; |
|
my $clientmathml=''; |
|
my $clientunicode='0'; |
|
for (my $i=0;$i<=$#browsertype;$i++) { |
|
my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]); |
|
if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) { |
|
$clientbrowser=$bname; |
|
$httpbrowser=~/$vreg/i; |
|
$clientversion=$1; |
|
$clientmathml=($clientversion>=$minv); |
|
$clientunicode=($clientversion>=$univ); |
|
} |
|
} |
|
my $clientos='unknown'; |
|
if (($httpbrowser=~/linux/i) || |
|
($httpbrowser=~/unix/i) || |
|
($httpbrowser=~/ux/i) || |
|
($httpbrowser=~/solaris/i)) { $clientos='unix'; } |
|
if (($httpbrowser=~/vax/i) || |
|
($httpbrowser=~/vms/i)) { $clientos='vms'; } |
|
if ($httpbrowser=~/next/i) { $clientos='next'; } |
|
if (($httpbrowser=~/mac/i) || |
|
($httpbrowser=~/powerpc/i)) { $clientos='mac'; } |
|
if ($httpbrowser=~/win/i) { $clientos='win'; } |
|
if ($httpbrowser=~/embed/i) { $clientos='pda'; } |
|
return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml, |
|
$clientunicode,$clientos,); |
|
} |
|
|
|
=pod |
|
|
|
=back |
|
|
|
=cut |
|
|
############################################################### |
############################################################### |
## Authentication changing form generation subroutines ## |
## Authentication changing form generation subroutines ## |
############################################################### |
############################################################### |
Line 681 sub home_server_option_list {
|
Line 949 sub home_server_option_list {
|
|
|
=pod |
=pod |
|
|
=item authform_xxxxxx |
=head1 Authentication Routines |
|
|
|
=over 4 |
|
|
|
=item * authform_xxxxxx |
|
|
The authform_xxxxxx subroutines provide javascript and html forms which |
The authform_xxxxxx subroutines provide javascript and html forms which |
handle some of the conveniences required for authentication forms. |
handle some of the conveniences required for authentication forms. |
Line 691 See loncreateuser.pm for invocation and
|
Line 963 See loncreateuser.pm for invocation and
|
|
|
=over 4 |
=over 4 |
|
|
=item authform_header |
=item * authform_header |
|
|
=item authform_authorwarning |
=item * authform_authorwarning |
|
|
=item authform_nochange |
=item * authform_nochange |
|
|
=item authform_kerberos |
=item * authform_kerberos |
|
|
=item authform_internal |
=item * authform_internal |
|
|
=item authform_filesystem |
=item * authform_filesystem |
|
|
=back |
=back |
|
|
Line 711 See loncreateuser.pm for invocation and
|
Line 983 See loncreateuser.pm for invocation and
|
sub authform_header{ |
sub authform_header{ |
my %in = ( |
my %in = ( |
formname => 'cu', |
formname => 'cu', |
kerb_def_dom => 'MSU.EDU', |
kerb_def_dom => '', |
@_, |
@_, |
); |
); |
$in{'formname'} = 'document.' . $in{'formname'}; |
$in{'formname'} = 'document.' . $in{'formname'}; |
my $result=''; |
my $result=''; |
|
|
|
#---------------------------------------------- Code for upper case translation |
|
my $Javascript_toUpperCase; |
|
unless ($in{kerb_def_dom}) { |
|
$Javascript_toUpperCase =<<"END"; |
|
switch (choice) { |
|
case 'krb': currentform.elements[choicearg].value = |
|
currentform.elements[choicearg].value.toUpperCase(); |
|
break; |
|
default: |
|
} |
|
END |
|
} else { |
|
$Javascript_toUpperCase = ""; |
|
} |
|
|
$result.=<<"END"; |
$result.=<<"END"; |
var current = new Object(); |
var current = new Object(); |
current.radiovalue = 'nochange'; |
current.radiovalue = 'nochange'; |
Line 749 function changed_radio(choice,currentfor
|
Line 1037 function changed_radio(choice,currentfor
|
function changed_text(choice,currentform) { |
function changed_text(choice,currentform) { |
var choicearg = choice + 'arg'; |
var choicearg = choice + 'arg'; |
if (currentform.elements[choicearg].value !='') { |
if (currentform.elements[choicearg].value !='') { |
switch (choice) { |
$Javascript_toUpperCase |
case 'krb': currentform.elements[choicearg].value = |
|
currentform.elements[choicearg].value.toUpperCase(); |
|
break; |
|
default: |
|
} |
|
// clear old field |
// clear old field |
if ((current.argfield != choicearg) && (current.argfield != null)) { |
if ((current.argfield != choicearg) && (current.argfield != null)) { |
currentform.elements[current.argfield].value = ''; |
currentform.elements[current.argfield].value = ''; |
Line 810 sub authform_kerberos{
|
Line 1093 sub authform_kerberos{
|
my %in = ( |
my %in = ( |
formname => 'document.cu', |
formname => 'document.cu', |
kerb_def_dom => 'MSU.EDU', |
kerb_def_dom => 'MSU.EDU', |
|
kerb_def_auth => 'krb4', |
@_, |
@_, |
); |
); |
my $result=''; |
my $result=''; |
|
my $check4; |
|
my $check5; |
|
if ($in{'kerb_def_auth'} eq 'krb5') { |
|
$check5 = " checked=\"on\""; |
|
} else { |
|
$check4 = " checked=\"on\""; |
|
} |
$result.=<<"END"; |
$result.=<<"END"; |
<input type="radio" name="login" value="krb" |
<input type="radio" name="login" value="krb" |
onclick="javascript:changed_radio('krb',$in{'formname'});" |
onclick="javascript:changed_radio('krb',$in{'formname'});" |
onchange="javascript:changed_radio('krb',$in{'formname'});" /> |
onchange="javascript:changed_radio('krb',$in{'formname'});" /> |
Kerberos authenticated with domain |
Kerberos authenticated with domain |
<input type="text" size="10" name="krbarg" value="" |
<input type="text" size="10" name="krbarg" value="$in{'kerb_def_dom'}" |
onchange="javascript:changed_text('krb',$in{'formname'});" /> |
onchange="javascript:changed_text('krb',$in{'formname'});" /> |
<input type="radio" name="krbver" value="4" checked="on" />Version 4 |
<input type="radio" name="krbver" value="4" $check4 />Version 4 |
<input type="radio" name="krbver" value="5" />Version 5 |
<input type="radio" name="krbver" value="5" $check5 />Version 5 |
END |
END |
return $result; |
return $result; |
} |
} |
Line 880 END
|
Line 1171 END
|
return $result; |
return $result; |
} |
} |
|
|
|
=pod |
|
|
|
=back |
|
|
|
=cut |
|
|
############################################################### |
############################################################### |
## End Authentication changing form generation functions ## |
## Get Authentication Defaults for Domain ## |
############################################################### |
############################################################### |
|
|
|
=pod |
|
|
|
=head1 Domains and Authentication |
|
|
|
Returns default authentication type and an associated argument as |
|
listed in file 'domain.tab'. |
|
|
|
=over 4 |
|
|
|
=item * get_auth_defaults |
|
|
|
get_auth_defaults($target_domain) returns the default authentication |
|
type and an associated argument (initial password or a kerberos domain). |
|
These values are stored in lonTabs/domain.tab |
|
|
|
($def_auth, $def_arg) = &get_auth_defaults($target_domain); |
|
|
|
If target_domain is not found in domain.tab, returns nothing (''). |
|
|
|
=cut |
|
|
|
#------------------------------------------- |
|
sub get_auth_defaults { |
|
my $domain=shift; |
|
return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain}); |
|
} |
|
############################################################### |
|
## End Get Authentication Defaults for Domain ## |
|
############################################################### |
|
|
|
############################################################### |
|
## Get Kerberos Defaults for Domain ## |
|
############################################################### |
|
## |
|
## Returns default kerberos version and an associated argument |
|
## as listed in file domain.tab. If not listed, provides |
|
## appropriate default domain and kerberos version. |
|
## |
|
#------------------------------------------- |
|
|
|
=pod |
|
|
|
=item * get_kerberos_defaults |
|
|
|
get_kerberos_defaults($target_domain) returns the default kerberos |
|
version and domain. If not found in domain.tabs, it defaults to |
|
version 4 and the domain of the server. |
|
|
|
($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain); |
|
|
|
=cut |
|
|
|
#------------------------------------------- |
|
sub get_kerberos_defaults { |
|
my $domain=shift; |
|
my ($krbdef,$krbdefdom) = |
|
&Apache::loncommon::get_auth_defaults($domain); |
|
unless ($krbdef =~/^krb/ && $krbdefdom) { |
|
$ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/; |
|
my $krbdefdom=$1; |
|
$krbdefdom=~tr/a-z/A-Z/; |
|
$krbdef = "krb4"; |
|
} |
|
return ($krbdef,$krbdefdom); |
|
} |
|
|
|
=pod |
|
|
|
=back |
|
|
|
=cut |
|
|
############################################################### |
############################################################### |
## Thesaurus Functions ## |
## Thesaurus Functions ## |
############################################################### |
############################################################### |
|
|
=pod |
=pod |
|
|
=item initialize_keywords |
=head1 Thesaurus Functions |
|
|
|
=over 4 |
|
|
|
=item * initialize_keywords |
|
|
Initializes the package variable %Keywords if it is empty. Uses the |
Initializes the package variable %Keywords if it is empty. Uses the |
package variable $thesaurus_db_file. |
package variable $thesaurus_db_file. |
Line 935 sub initialize_keywords {
|
Line 1308 sub initialize_keywords {
|
|
|
=pod |
=pod |
|
|
=item keyword($word) |
=item * keyword($word) |
|
|
Returns true if $word is a keyword. A keyword is a word that appears more |
Returns true if $word is a keyword. A keyword is a word that appears more |
than the average number of times in the thesaurus database. Calls |
than the average number of times in the thesaurus database. Calls |
Line 956 sub keyword {
|
Line 1329 sub keyword {
|
|
|
=pod |
=pod |
|
|
=item get_related_words |
=item * get_related_words |
|
|
Look up a word in the thesaurus. Takes a scalar arguement and returns |
Look up a word in the thesaurus. Takes a scalar arguement and returns |
an array of words. If the keyword is not in the thesaurus, an empty array |
an array of words. If the keyword is not in the thesaurus, an empty array |
Line 993 sub get_related_words {
|
Line 1366 sub get_related_words {
|
return @Words; |
return @Words; |
} |
} |
|
|
############################################################### |
=pod |
## End Thesaurus Functions ## |
|
############################################################### |
=back |
|
|
|
=cut |
|
|
# -------------------------------------------------------------- Plaintext name |
# -------------------------------------------------------------- Plaintext name |
|
=pod |
|
|
|
=head1 User Name Functions |
|
|
|
=over 4 |
|
|
|
=item * plainname($uname,$udom) |
|
|
|
Takes a users logon name and returns it as a string in |
|
"first middle last generation" form |
|
|
|
=cut |
|
|
|
############################################################### |
sub plainname { |
sub plainname { |
my ($uname,$udom)=@_; |
my ($uname,$udom)=@_; |
my %names=&Apache::lonnet::get('environment', |
my %names=&Apache::lonnet::get('environment', |
Line 1012 sub plainname {
|
Line 1400 sub plainname {
|
} |
} |
|
|
# -------------------------------------------------------------------- Nickname |
# -------------------------------------------------------------------- Nickname |
|
=pod |
|
|
|
=item * nickname($uname,$udom) |
|
|
|
Gets a users name and returns it as a string as |
|
|
|
""nickname"" |
|
|
|
if the user has a nickname or |
|
|
|
"first middle last generation" |
|
|
|
if the user does not |
|
|
|
=cut |
|
|
sub nickname { |
sub nickname { |
my ($uname,$udom)=@_; |
my ($uname,$udom)=@_; |
Line 1033 sub nickname {
|
Line 1435 sub nickname {
|
|
|
# ------------------------------------------------------------------ Screenname |
# ------------------------------------------------------------------ Screenname |
|
|
|
=pod |
|
|
|
=item * screenname($uname,$udom) |
|
|
|
Gets a users screenname and returns it as a string |
|
|
|
=cut |
|
|
sub screenname { |
sub screenname { |
my ($uname,$udom)=@_; |
my ($uname,$udom)=@_; |
my %names= |
my %names= |
Line 1065 sub aboutmewrapper {
|
Line 1475 sub aboutmewrapper {
|
|
|
|
|
sub syllabuswrapper { |
sub syllabuswrapper { |
my ($link,$un,$do,$tf)=@_; |
my ($linktext,$coursedir,$domain,$fontcolor)=@_; |
if ($tf) { $link='<font color="'.$tf.'">'.$link.'</font>'; } |
if ($fontcolor) { |
return "<a href='/public/$do/$un/syllabus'>$link</a>"; |
$linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>'; |
|
} |
|
return "<a href='/public/$domain/$coursedir/syllabus'>$linktext</a>"; |
} |
} |
|
|
# ---------------------------------------------------------------- Language IDs |
=pod |
|
|
|
=back |
|
|
|
=head1 Access .tab File Data |
|
|
|
=over 4 |
|
|
|
=item * languageids() |
|
|
|
returns list of all language ids |
|
|
|
=cut |
|
|
sub languageids { |
sub languageids { |
return sort(keys(%language)); |
return sort(keys(%language)); |
} |
} |
|
|
# -------------------------------------------------------- Language Description |
=pod |
|
|
|
=item * languagedescription() |
|
|
|
returns description of a specified language id |
|
|
|
=cut |
|
|
sub languagedescription { |
sub languagedescription { |
return $language{shift(@_)}; |
my $code=shift; |
|
return ($supported_language{$code}?'* ':''). |
|
$language{$code}. |
|
($supported_language{$code}?' ['.&mt('interface available').']':''); |
} |
} |
|
|
# --------------------------------------------------------------- Copyright IDs |
=pod |
|
|
|
=item * copyrightids() |
|
|
|
returns list of all copyrights |
|
|
|
=cut |
|
|
sub copyrightids { |
sub copyrightids { |
return sort(keys(%cprtag)); |
return sort(keys(%cprtag)); |
} |
} |
|
|
# ------------------------------------------------------- Copyright Description |
=pod |
|
|
|
=item * copyrightdescription() |
|
|
|
returns description of a specified copyright id |
|
|
|
=cut |
|
|
sub copyrightdescription { |
sub copyrightdescription { |
return $cprtag{shift(@_)}; |
return $cprtag{shift(@_)}; |
} |
} |
|
|
# ------------------------------------------------------------- File Categories |
=pod |
|
|
|
=item * filecategories() |
|
|
|
returns list of all file categories |
|
|
|
=cut |
|
|
sub filecategories { |
sub filecategories { |
return sort(keys(%category_extensions)); |
return sort(keys(%category_extensions)); |
} |
} |
|
|
# -------------------------------------- File Types within a specified category |
=pod |
|
|
|
=item * filecategorytypes() |
|
|
|
returns list of file types belonging to a given file |
|
category |
|
|
|
=cut |
|
|
sub filecategorytypes { |
sub filecategorytypes { |
return @{$category_extensions{lc($_[0])}}; |
return @{$category_extensions{lc($_[0])}}; |
} |
} |
|
|
# ------------------------------------------------------------------ File Types |
=pod |
sub fileextensions { |
|
return sort(keys(%fe)); |
=item * fileembstyle() |
} |
|
|
returns embedding style for a specified file type |
|
|
|
=cut |
|
|
# ------------------------------------------------------------- Embedding Style |
|
sub fileembstyle { |
sub fileembstyle { |
return $fe{lc(shift(@_))}; |
return $fe{lc(shift(@_))}; |
} |
} |
|
|
# ------------------------------------------------------------ Description Text |
=pod |
|
|
|
=item * filedescription() |
|
|
|
returns description for a specified file type |
|
|
|
=cut |
|
|
sub filedescription { |
sub filedescription { |
return $fd{lc(shift(@_))}; |
return $fd{lc(shift(@_))}; |
} |
} |
|
|
# ------------------------------------------------------------ Description Text |
=pod |
|
|
|
=item * filedescriptionex() |
|
|
|
returns description for a specified file type with |
|
extra formatting |
|
|
|
=cut |
|
|
sub filedescriptionex { |
sub filedescriptionex { |
my $ex=shift; |
my $ex=shift; |
return '.'.$ex.' '.$fd{lc($ex)}; |
return '.'.$ex.' '.$fd{lc($ex)}; |
} |
} |
|
|
# ---- Retrieve attempts by students |
# End of .tab access |
# input |
=pod |
# $symb - problem including path |
|
# $username,$domain - that of the student |
=back |
# $course - course name |
|
# $getattempt - leave blank if want all attempts, else put something. |
=cut |
# $regexp - regular expression. If string matches regexp send to |
|
# $gradesub - routine that process the string if it matches regexp |
# ------------------------------------------------------------------ File Types |
# |
sub fileextensions { |
# output |
return sort(keys(%fe)); |
# formatted as a table all the attempts, if any. |
} |
|
|
|
# ----------------------------------------------------------- Display Languages |
|
# returns a hash with all desired display languages |
# |
# |
|
|
|
sub display_languages { |
|
my %languages=(); |
|
foreach (&preferred_languages()) { |
|
$languages{$_}=1; |
|
} |
|
&get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']); |
|
if ($ENV{'form.displaylanguage'}) { |
|
foreach (split(/\s*(\,|\;|\:)\s*/,$ENV{'form.displaylanguage'})) { |
|
$languages{$_}=1; |
|
} |
|
} |
|
return %languages; |
|
} |
|
|
|
sub preferred_languages { |
|
my @languages=(); |
|
if ($ENV{'environment.languages'}) { |
|
@languages=split(/\s*(\,|\;|\:)\s*/,$ENV{'environment.languages'}); |
|
} |
|
if ($ENV{'course.'.$ENV{'request.course.id'}.'.languages'}) { |
|
@languages=(@languages,split(/\s*(\,|\;|\:)\s*/, |
|
$ENV{'course.'.$ENV{'request.course.id'}.'.languages'})); |
|
} |
|
my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0]; |
|
if ($browser) { |
|
@languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser)); |
|
} |
|
if ($Apache::lonnet::domain_lang_def{$ENV{'user.domain'}}) { |
|
@languages=(@languages, |
|
$Apache::lonnet::domain_lang_def{$ENV{'user.domain'}}); |
|
} |
|
if ($Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}}) { |
|
@languages=(@languages, |
|
$Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}}); |
|
} |
|
if ($Apache::lonnet::domain_lang_def{ |
|
$Apache::lonnet::perlvar{'lonDefDomain'}}) { |
|
@languages=(@languages, |
|
$Apache::lonnet::domain_lang_def{ |
|
$Apache::lonnet::perlvar{'lonDefDomain'}}); |
|
} |
|
# turn "en-ca" into "en-ca,en" |
|
my @genlanguages; |
|
foreach (@languages) { |
|
unless ($_=~/\w/) { next; } |
|
push (@genlanguages,$_); |
|
if ($_=~/(\-|\_)/) { |
|
push (@genlanguages,(split(/(\-|\_)/,$_))[0]); |
|
} |
|
} |
|
return @genlanguages; |
|
} |
|
|
|
############################################################### |
|
## Student Answer Attempts ## |
|
############################################################### |
|
|
|
=pod |
|
|
|
=head1 Alternate Problem Views |
|
|
|
=over 4 |
|
|
|
=item * get_previous_attempt($symb, $username, $domain, $course, |
|
$getattempt, $regexp, $gradesub) |
|
|
|
Return string with previous attempt on problem. Arguments: |
|
|
|
=over 4 |
|
|
|
=item * $symb: Problem, including path |
|
|
|
=item * $username: username of the desired student |
|
|
|
=item * $domain: domain of the desired student |
|
|
|
=item * $course: Course ID |
|
|
|
=item * $getattempt: Leave blank for all attempts, otherwise put |
|
something |
|
|
|
=item * $regexp: if string matches this regexp, the string will be |
|
sent to $gradesub |
|
|
|
=item * $gradesub: routine that processes the string if it matches $regexp |
|
|
|
=back |
|
|
|
The output string is a table containing all desired attempts, if any. |
|
|
|
=cut |
|
|
sub get_previous_attempt { |
sub get_previous_attempt { |
my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_; |
my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_; |
my $prevattempts=''; |
my $prevattempts=''; |
Line 1198 sub get_previous_attempt {
|
Line 1775 sub get_previous_attempt {
|
} |
} |
} |
} |
|
|
|
sub relative_to_absolute { |
|
my ($url,$output)=@_; |
|
my $parser=HTML::TokeParser->new(\$output); |
|
my $token; |
|
my $thisdir=$url; |
|
my @rlinks=(); |
|
while ($token=$parser->get_token) { |
|
if ($token->[0] eq 'S') { |
|
if ($token->[1] eq 'a') { |
|
if ($token->[2]->{'href'}) { |
|
$rlinks[$#rlinks+1]=$token->[2]->{'href'}; |
|
} |
|
} elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) { |
|
$rlinks[$#rlinks+1]=$token->[2]->{'src'}; |
|
} elsif ($token->[1] eq 'base') { |
|
$thisdir=$token->[2]->{'href'}; |
|
} |
|
} |
|
} |
|
$thisdir=~s-/[^/]*$--; |
|
foreach (@rlinks) { |
|
unless (($_=~/^http:\/\//i) || |
|
($_=~/^\//) || |
|
($_=~/^javascript:/i) || |
|
($_=~/^mailto:/i) || |
|
($_=~/^\#/)) { |
|
my $newlocation=&Apache::lonnet::hreflocation($thisdir,$_); |
|
$output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/; |
|
} |
|
} |
|
# -------------------------------------------------- Deal with Applet codebases |
|
$output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei; |
|
return $output; |
|
} |
|
|
|
=pod |
|
|
|
=item * get_student_view |
|
|
|
show a snapshot of what student was looking at |
|
|
|
=cut |
|
|
sub get_student_view { |
sub get_student_view { |
my ($symb,$username,$domain,$courseid,$target) = @_; |
my ($symb,$username,$domain,$courseid,$target) = @_; |
my ($map,$id,$feedurl) = split(/___/,$symb); |
my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb); |
my (%old,%moreenv); |
my (%old,%moreenv); |
my @elements=('symb','courseid','domain','username'); |
my @elements=('symb','courseid','domain','username'); |
foreach my $element (@elements) { |
foreach my $element (@elements) { |
Line 1209 sub get_student_view {
|
Line 1829 sub get_student_view {
|
} |
} |
if ($target eq 'tex') {$moreenv{'form.grade_target'} = 'tex';} |
if ($target eq 'tex') {$moreenv{'form.grade_target'} = 'tex';} |
&Apache::lonnet::appenv(%moreenv); |
&Apache::lonnet::appenv(%moreenv); |
my $userview=&Apache::lonnet::ssi('/res/'.$feedurl); |
$feedurl=&Apache::lonnet::clutter($feedurl); |
|
my $userview=&Apache::lonnet::ssi_body($feedurl); |
&Apache::lonnet::delenv('form.grade_'); |
&Apache::lonnet::delenv('form.grade_'); |
foreach my $element (@elements) { |
foreach my $element (@elements) { |
$ENV{'form.grade_'.$element}=$old{$element}; |
$ENV{'form.grade_'.$element}=$old{$element}; |
Line 1221 sub get_student_view {
|
Line 1842 sub get_student_view {
|
$userview=~s/\<head\>//gi; |
$userview=~s/\<head\>//gi; |
$userview=~s/\<\/head\>//gi; |
$userview=~s/\<\/head\>//gi; |
$userview=~s/action\s*\=/would_be_action\=/gi; |
$userview=~s/action\s*\=/would_be_action\=/gi; |
|
$userview=&relative_to_absolute($feedurl,$userview); |
return $userview; |
return $userview; |
} |
} |
|
|
|
=pod |
|
|
|
=item * get_student_answers() |
|
|
|
show a snapshot of how student was answering problem |
|
|
|
=cut |
|
|
sub get_student_answers { |
sub get_student_answers { |
my ($symb,$username,$domain,$courseid) = @_; |
my ($symb,$username,$domain,$courseid,%form) = @_; |
my ($map,$id,$feedurl) = split(/___/,$symb); |
my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb); |
my (%old,%moreenv); |
my (%old,%moreenv); |
my @elements=('symb','courseid','domain','username'); |
my @elements=('symb','courseid','domain','username'); |
foreach my $element (@elements) { |
foreach my $element (@elements) { |
Line 1235 sub get_student_answers {
|
Line 1865 sub get_student_answers {
|
} |
} |
$moreenv{'form.grade_target'}='answer'; |
$moreenv{'form.grade_target'}='answer'; |
&Apache::lonnet::appenv(%moreenv); |
&Apache::lonnet::appenv(%moreenv); |
my $userview=&Apache::lonnet::ssi('/res/'.$feedurl); |
my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%form); |
&Apache::lonnet::delenv('form.grade_'); |
&Apache::lonnet::delenv('form.grade_'); |
foreach my $element (@elements) { |
foreach my $element (@elements) { |
$ENV{'form.grade_'.$element}=$old{$element}; |
$ENV{'form.grade_'.$element}=$old{$element}; |
Line 1243 sub get_student_answers {
|
Line 1873 sub get_student_answers {
|
return $userview; |
return $userview; |
} |
} |
|
|
|
=pod |
|
|
|
=item * &submlink() |
|
|
|
Inputs: $text $uname $udom $symb |
|
|
|
Returns: A link to grades.pm such as to see the SUBM view of a student |
|
|
|
=cut |
|
|
|
############################################### |
|
sub submlink { |
|
my ($text,$uname,$udom,$symb)=@_; |
|
if (!($uname && $udom)) { |
|
(my $cursymb, my $courseid,$udom,$uname)= |
|
&Apache::lonxml::whichuser($symb); |
|
if (!$symb) { $symb=$cursymb; } |
|
} |
|
if (!$symb) { $symb=&symbread(); } |
|
return '<a href="/adm/grades?symb='.$symb.'&student='.$uname. |
|
'&userdom='.$udom.'&command=submission">'.$text.'</a>'; |
|
} |
|
############################################## |
|
|
|
=pod |
|
|
|
=back |
|
|
|
=cut |
|
|
############################################### |
############################################### |
|
|
|
|
Line 1307 sub findallcourses {
|
Line 1967 sub findallcourses {
|
|
|
=pod |
=pod |
|
|
=item &determinedomain() |
=head1 Domain Template Functions |
|
|
|
=over 4 |
|
|
|
=item * &determinedomain() |
|
|
Inputs: $domain (usually will be undef) |
Inputs: $domain (usually will be undef) |
|
|
Line 1331 sub determinedomain {
|
Line 1995 sub determinedomain {
|
############################################### |
############################################### |
=pod |
=pod |
|
|
=item &domainlogo() |
=item * &domainlogo() |
|
|
Inputs: $domain (usually will be undef) |
Inputs: $domain (usually will be undef) |
|
|
Line 1339 Returns: A link to a domain logo, if the
|
Line 2003 Returns: A link to a domain logo, if the
|
If the domain logo does not exist, a description of the domain. |
If the domain logo does not exist, a description of the domain. |
|
|
=cut |
=cut |
|
|
############################################### |
############################################### |
sub domainlogo { |
sub domainlogo { |
my $domain = &determinedomain(shift); |
my $domain = &determinedomain(shift); |
# See if there is a logo |
# See if there is a logo |
if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') { |
if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') { |
return '<img src="http://'.$ENV{'HTTP_HOST'}.':8080/adm/lonDomLogos/'. |
my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'}; |
$domain.'.gif" />'; |
if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; } |
|
return '<img src="http://'.$ENV{'HTTP_HOST'}.':'.$lonhttpdPort. |
|
'/adm/lonDomLogos/'.$domain.'.gif" />'; |
} elsif(exists($Apache::lonnet::domaindescription{$domain})) { |
} elsif(exists($Apache::lonnet::domaindescription{$domain})) { |
return $Apache::lonnet::domaindescription{$domain}; |
return $Apache::lonnet::domaindescription{$domain}; |
} else { |
} else { |
Line 1356 sub domainlogo {
|
Line 2023 sub domainlogo {
|
|
|
=pod |
=pod |
|
|
=item &designparm() |
=item * &designparm() |
|
|
Inputs: $which parameter; $domain (usually will be undef) |
Inputs: $which parameter; $domain (usually will be undef) |
|
|
Returns: value of designparamter $which |
Returns: value of designparamter $which |
|
|
=cut |
=cut |
|
|
############################################## |
############################################## |
sub designparm { |
sub designparm { |
my ($which,$domain)=@_; |
my ($which,$domain)=@_; |
|
if ($ENV{'browser.blackwhite'} eq 'on') { |
|
if ($which=~/\.(font|alink|vlink|link)$/) { |
|
return '#000000'; |
|
} |
|
if ($which=~/\.(pgbg|sidebg)$/) { |
|
return '#FFFFFF'; |
|
} |
|
if ($which=~/\.tabbg$/) { |
|
return '#CCCCCC'; |
|
} |
|
} |
|
if ($ENV{'environment.color.'.$which}) { |
|
return $ENV{'environment.color.'.$which}; |
|
} |
$domain=&determinedomain($domain); |
$domain=&determinedomain($domain); |
if ($designhash{$domain.'.'.$which}) { |
if ($designhash{$domain.'.'.$which}) { |
return $designhash{$domain.'.'.$which}; |
return $designhash{$domain.'.'.$which}; |
Line 1379 sub designparm {
|
Line 2061 sub designparm {
|
|
|
=pod |
=pod |
|
|
=item &bodytag() |
=back |
|
|
|
=head1 HTTP Helpers |
|
|
|
=over 4 |
|
|
|
=item * &bodytag() |
|
|
Returns a uniform header for LON-CAPA web pages. |
Returns a uniform header for LON-CAPA web pages. |
|
|
Inputs: |
Inputs: |
|
|
$title, A title to be displayed on the page. |
=over 4 |
$function, the current role (can be undef). |
|
$addentries, extra parameters for the <body> tag. |
=item * $title, A title to be displayed on the page. |
$bodyonly, if defined, only return the <body> tag. |
|
$domain, if defined, force a given domain. |
=item * $function, the current role (can be undef). |
|
|
|
=item * $addentries, extra parameters for the <body> tag. |
|
|
|
=item * $bodyonly, if defined, only return the <body> tag. |
|
|
|
=item * $domain, if defined, force a given domain. |
|
|
|
=item * $forcereg, if page should register as content page (relevant for |
|
text interface only) |
|
|
|
=back |
|
|
Returns: A uniform header for LON-CAPA web pages. |
Returns: A uniform header for LON-CAPA web pages. |
If $bodyonly is nonzero, a string containing a <body> tag will be returned. |
If $bodyonly is nonzero, a string containing a <body> tag will be returned. |
Line 1398 other decorations will be returned.
|
Line 2097 other decorations will be returned.
|
|
|
=cut |
=cut |
|
|
############################################### |
|
|
|
|
|
############################################### |
|
sub bodytag { |
sub bodytag { |
my ($title,$function,$addentries,$bodyonly,$domain)=@_; |
my ($title,$function,$addentries,$bodyonly,$domain,$forcereg)=@_; |
|
$title=&mt($title); |
unless ($function) { |
unless ($function) { |
$function='student'; |
$function='student'; |
if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) { |
if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) { |
Line 1425 sub bodytag {
|
Line 2121 sub bodytag {
|
my $alink=&designparm($function.'.alink',$domain); |
my $alink=&designparm($function.'.alink',$domain); |
my $vlink=&designparm($function.'.vlink',$domain); |
my $vlink=&designparm($function.'.vlink',$domain); |
my $sidebg=&designparm($function.'.sidebg',$domain); |
my $sidebg=&designparm($function.'.sidebg',$domain); |
|
# Accessibility font enhance |
|
unless ($addentries) { $addentries=''; } |
|
if ($ENV{'browser.fontenhance'} eq 'on') { |
|
$addentries.=' style="font-size: x-large"'; |
|
} |
# role and realm |
# role and realm |
my ($role,$realm) |
my ($role,$realm) |
=&Apache::lonnet::plaintext((split(/\./,$ENV{'request.role'}))[0]); |
=&Apache::lonnet::plaintext((split(/\./,$ENV{'request.role'}))[0]); |
Line 1437 sub bodytag {
|
Line 2137 sub bodytag {
|
unless ($realm) { $realm=' '; } |
unless ($realm) { $realm=' '; } |
# Set messages |
# Set messages |
my $messages=&domainlogo($domain); |
my $messages=&domainlogo($domain); |
# Output |
# Port for miniserver |
|
my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'}; |
|
if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; } |
|
# construct main body tag |
my $bodytag = <<END; |
my $bodytag = <<END; |
<body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link" |
<body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link" |
$addentries> |
$addentries> |
END |
END |
|
my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'. |
|
$lonhttpdPort.$img.'" />'; |
if ($bodyonly) { |
if ($bodyonly) { |
return $bodytag; |
return $bodytag; |
} else { |
} elsif ($ENV{'browser.interface'} eq 'textual') { |
return(<<ENDBODY); |
# Accessibility |
|
return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web', |
|
$forcereg). |
|
'<h1>LON-CAPA: '.$title.'</h1>'; |
|
} elsif ($ENV{'environment.remote'} eq 'off') { |
|
# No Remote |
|
return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web', |
|
$forcereg). |
|
'<table bgcolor="'.$pgbg.'" width="100%" border="0" cellspacing="3" cellpadding="3"><tr><td bgcolor="'.$tabbg.'"><font size="+3" color="'.$font.'"><b>'.$title. |
|
'</b></font></td></tr></table>'; |
|
} |
|
|
|
# |
|
# Top frame rendering, Remote is up |
|
# |
|
return(<<ENDBODY); |
$bodytag |
$bodytag |
<table width="100%" cellspacing="0" border="0" cellpadding="0"> |
<table width="100%" cellspacing="0" border="0" cellpadding="0"> |
<tr><td bgcolor="$font"> |
<tr><td bgcolor="$sidebg"> |
<img src="http://$ENV{'HTTP_HOST'}:8080/$img" /></td> |
$upperleft</td> |
<td bgcolor="$font"><font color='$sidebg'>$messages</font></td> |
<td bgcolor="$sidebg" align="right">$messages </td> |
</tr> |
</tr> |
<tr> |
<tr> |
<td rowspan="3" bgcolor="$tabbg"> |
<td rowspan="3" bgcolor="$tabbg"> |
Line 1471 $bodytag
|
Line 2191 $bodytag
|
<td bgcolor="$tabbg" align="right"><font size="2">$realm</font> </td></tr> |
<td bgcolor="$tabbg" align="right"><font size="2">$realm</font> </td></tr> |
</table><br> |
</table><br> |
ENDBODY |
ENDBODY |
} |
|
} |
} |
|
|
############################################### |
############################################### |
|
|
|
sub get_posted_cgi { |
|
my $r=shift; |
|
|
|
my $buffer; |
|
|
|
$r->read($buffer,$r->header_in('Content-length'),0); |
|
unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) { |
|
my @pairs=split(/&/,$buffer); |
|
my $pair; |
|
foreach $pair (@pairs) { |
|
my ($name,$value) = split(/=/,$pair); |
|
$value =~ tr/+/ /; |
|
$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
|
$name =~ tr/+/ /; |
|
$name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
|
&add_to_env("form.$name",$value); |
|
} |
|
} else { |
|
my $contentsep=$1; |
|
my @lines = split (/\n/,$buffer); |
|
my $name=''; |
|
my $value=''; |
|
my $fname=''; |
|
my $fmime=''; |
|
my $i; |
|
for ($i=0;$i<=$#lines;$i++) { |
|
if ($lines[$i]=~/^$contentsep/) { |
|
if ($name) { |
|
chomp($value); |
|
if ($fname) { |
|
$ENV{"form.$name.filename"}=$fname; |
|
$ENV{"form.$name.mimetype"}=$fmime; |
|
} else { |
|
$value=~s/\s+$//s; |
|
} |
|
&add_to_env("form.$name",$value); |
|
} |
|
if ($i<$#lines) { |
|
$i++; |
|
$lines[$i]=~ |
|
/Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i; |
|
$name=$1; |
|
$value=''; |
|
if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) { |
|
$fname=$1; |
|
if |
|
($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) { |
|
$fmime=$1; |
|
$i++; |
|
} else { |
|
$fmime=''; |
|
} |
|
} else { |
|
$fname=''; |
|
$fmime=''; |
|
} |
|
$i++; |
|
} |
|
} else { |
|
$value.=$lines[$i]."\n"; |
|
} |
|
} |
|
} |
|
$ENV{'request.method'}=$ENV{'REQUEST_METHOD'}; |
|
$r->method_number(M_GET); |
|
$r->method('GET'); |
|
$r->headers_in->unset('Content-length'); |
|
} |
|
|
|
=pod |
|
|
|
=item * get_unprocessed_cgi($query,$possible_names) |
|
|
|
Modify the %ENV hash to contain unprocessed CGI form parameters held in |
|
$query. The parameters listed in $possible_names (an array reference), |
|
will be set in $ENV{'form.name'} if they do not already exist. |
|
|
|
Typically called with $ENV{'QUERY_STRING'} as the first parameter. |
|
$possible_names is an ref to an array of form element names. As an example: |
|
get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']); |
|
will result in $ENV{'form.uname'} and $ENV{'form.udom'} being set. |
|
|
|
=cut |
|
|
sub get_unprocessed_cgi { |
sub get_unprocessed_cgi { |
my ($query,$possible_names)= @_; |
my ($query,$possible_names)= @_; |
# $Apache::lonxml::debug=1; |
# $Apache::lonxml::debug=1; |
Line 1490 sub get_unprocessed_cgi {
|
Line 2294 sub get_unprocessed_cgi {
|
} |
} |
} |
} |
|
|
|
=pod |
|
|
|
=item * cacheheader() |
|
|
|
returns cache-controlling header code |
|
|
|
=cut |
|
|
sub cacheheader { |
sub cacheheader { |
unless ($ENV{'request.method'} eq 'GET') { return ''; } |
unless ($ENV{'request.method'} eq 'GET') { return ''; } |
my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime); |
my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime); |
Line 1499 sub cacheheader {
|
Line 2311 sub cacheheader {
|
return $output; |
return $output; |
} |
} |
|
|
|
=pod |
|
|
|
=item * no_cache($r) |
|
|
|
specifies header code to not have cache |
|
|
|
=cut |
|
|
sub no_cache { |
sub no_cache { |
my ($r) = @_; |
my ($r) = @_; |
unless ($ENV{'request.method'} eq 'GET') { return ''; } |
unless ($ENV{'request.method'} eq 'GET') { return ''; } |
Line 1508 sub no_cache {
|
Line 2328 sub no_cache {
|
#$r->header_out("Expires" => $date); |
#$r->header_out("Expires" => $date); |
} |
} |
|
|
|
sub content_type { |
|
my ($r,$type,$charset) = @_; |
|
unless ($charset) { |
|
$charset=&Apache::lonlocal::current_encoding; |
|
} |
|
$r->content_type($type.($charset?'; charset='.$charset:'')); |
|
} |
|
|
|
=pod |
|
|
|
=item * add_to_env($name,$value) |
|
|
|
adds $name to the %ENV hash with value |
|
$value, if $name already exists, the entry is converted to an array |
|
reference and $value is added to the array. |
|
|
|
=cut |
|
|
sub add_to_env { |
sub add_to_env { |
my ($name,$value)=@_; |
my ($name,$value)=@_; |
if (defined($ENV{$name})) { |
if (defined($ENV{$name})) { |
Line 1529 sub add_to_env {
|
Line 2367 sub add_to_env {
|
|
|
=back |
=back |
|
|
=head2 CSV Upload/Handling functions |
=head1 CSV Upload/Handling functions |
|
|
=over 4 |
=over 4 |
|
|
=item upfile_store($r) |
=item * upfile_store($r) |
|
|
Store uploaded file, $r should be the HTTP Request object, |
Store uploaded file, $r should be the HTTP Request object, |
needs $ENV{'form.upfile'} |
needs $ENV{'form.upfile'} |
Line 1560 sub upfile_store {
|
Line 2398 sub upfile_store {
|
|
|
=pod |
=pod |
|
|
=item load_tmp_file($r) |
=item * load_tmp_file($r) |
|
|
Load uploaded file from tmp, $r should be the HTTP Request object, |
Load uploaded file from tmp, $r should be the HTTP Request object, |
needs $ENV{'form.datatoken'}, |
needs $ENV{'form.datatoken'}, |
Line 1583 sub load_tmp_file {
|
Line 2421 sub load_tmp_file {
|
|
|
=pod |
=pod |
|
|
=item upfile_record_sep() |
=item * upfile_record_sep() |
|
|
Separate uploaded file into records |
Separate uploaded file into records |
returns array of records, |
returns array of records, |
Line 1600 sub upfile_record_sep {
|
Line 2438 sub upfile_record_sep {
|
|
|
=pod |
=pod |
|
|
=item record_sep($record) |
=item * record_sep($record) |
|
|
Separate a record into fields $record should be an item from the upfile_record_sep(), needs $ENV{'form.upfiletype'} |
Separate a record into fields $record should be an item from the upfile_record_sep(), needs $ENV{'form.upfiletype'} |
|
|
Line 1652 sub record_sep {
|
Line 2490 sub record_sep {
|
|
|
=pod |
=pod |
|
|
=item upfile_select_html() |
=item * upfile_select_html() |
|
|
return HTML code to select file and specify its type |
return HTML code to select file and specify its type |
|
|
Line 1672 ENDUPFORM
|
Line 2510 ENDUPFORM
|
|
|
=pod |
=pod |
|
|
=item csv_print_samples($r,$records) |
=item * csv_print_samples($r,$records) |
|
|
Prints a table of sample values from each column uploaded $r is an |
Prints a table of sample values from each column uploaded $r is an |
Apache Request ref, $records is an arrayref from |
Apache Request ref, $records is an arrayref from |
Line 1704 sub csv_print_samples {
|
Line 2542 sub csv_print_samples {
|
|
|
=pod |
=pod |
|
|
=item csv_print_select_table($r,$records,$d) |
=item * csv_print_select_table($r,$records,$d) |
|
|
Prints a table to create associations between values and table columns. |
Prints a table to create associations between values and table columns. |
$r is an Apache Request ref, |
$r is an Apache Request ref, |
Line 1738 sub csv_print_select_table {
|
Line 2576 sub csv_print_select_table {
|
|
|
=pod |
=pod |
|
|
=item csv_samples_select_table($r,$records,$d) |
=item * csv_samples_select_table($r,$records,$d) |
|
|
Prints a table of sample values from the upload and can make associate samples to internal names. |
Prints a table of sample values from the upload and can make associate samples to internal names. |
|
|
Line 1775 sub csv_samples_select_table {
|
Line 2613 sub csv_samples_select_table {
|
$i--; |
$i--; |
return($i); |
return($i); |
} |
} |
1; |
|
__END__; |
|
|
|
=pod |
=pod |
|
|
=back |
=item clean_excel_name($name) |
|
|
=head2 Access .tab File Data |
Returns a replacement for $name which does not contain any illegal characters. |
|
|
=over 4 |
=cut |
|
|
=item languageids() |
|
|
|
returns list of all language ids |
|
|
|
=item languagedescription() |
|
|
|
returns description of a specified language id |
|
|
|
=item copyrightids() |
|
|
|
returns list of all copyrights |
|
|
|
=item copyrightdescription() |
|
|
|
returns description of a specified copyright id |
|
|
|
=item filecategories() |
|
|
|
returns list of all file categories |
|
|
|
=item filecategorytypes() |
|
|
|
returns list of file types belonging to a given file |
|
category |
|
|
|
=item fileembstyle() |
|
|
|
returns embedding style for a specified file type |
|
|
|
=item filedescription() |
|
|
|
returns description for a specified file type |
|
|
|
=item filedescriptionex() |
|
|
|
returns description for a specified file type with |
sub clean_excel_name { |
extra formatting |
my ($name) = @_; |
|
$name =~ s/[:\*\?\/\\]//g; |
|
if (length($name) > 31) { |
|
$name = substr($name,0,31); |
|
} |
|
return $name; |
|
} |
|
|
=back |
=pod |
|
|
=head2 Alternate Problem Views |
=item * check_if_partid_hidden($id,$symb,$udom,$uname) |
|
|
=over 4 |
Returns either 1 or undef |
|
|
=item get_previous_attempt() |
1 if the part is to be hidden, undef if it is to be shown |
|
|
return string with previous attempt on problem |
Arguments are: |
|
|
=item get_student_view() |
$id the id of the part to be checked |
|
$symb, optional the symb of the resource to check |
|
$udom, optional the domain of the user to check for |
|
$uname, optional the username of the user to check for |
|
|
show a snapshot of what student was looking at |
=cut |
|
|
=item get_student_answers() |
sub check_if_partid_hidden { |
|
my ($id,$symb,$udom,$uname) = @_; |
|
my $hiddenparts=&Apache::lonnet::EXT('resource.0.parameter_hiddenparts', |
|
$symb,$udom,$uname); |
|
my @hiddenlist=split(/,/,$hiddenparts); |
|
foreach my $checkid (@hiddenlist) { |
|
if ($checkid =~ /^\s*\Q$id\E\s*$/) { return 1; } |
|
} |
|
return undef; |
|
} |
|
|
show a snapshot of how student was answering problem |
=pod |
|
|
=back |
=back |
|
|
=head2 HTTP Helper |
=cut |
|
|
=over 4 |
|
|
|
=item get_unprocessed_cgi($query,$possible_names) |
|
|
|
Modify the %ENV hash to contain unprocessed CGI form parameters held in |
|
$query. The parameters listed in $possible_names (an array reference), |
|
will be set in $ENV{'form.name'} if they do not already exist. |
|
|
|
Typically called with $ENV{'QUERY_STRING'} as the first parameter. |
|
$possible_names is an ref to an array of form element names. As an example: |
|
get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']); |
|
will result in $ENV{'form.uname'} and $ENV{'form.udom'} being set. |
|
|
|
=item cacheheader() |
|
|
|
returns cache-controlling header code |
|
|
|
=item no_cache($r) |
|
|
|
specifies header code to not have cache |
|
|
|
=item add_to_env($name,$value) |
|
|
|
adds $name to the %ENV hash with value |
|
$value, if $name already exists, the entry is converted to an array |
|
reference and $value is added to the array. |
|
|
|
=back |
1; |
|
__END__; |
|
|
=cut |
|