version 1.1089, 2012/08/07 09:25:39
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version 1.1094, 2012/08/25 04:34:44
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Line 70 use Apache::lonclonecourse();
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Line 70 use Apache::lonclonecourse();
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use LONCAPA qw(:DEFAULT :match); |
use LONCAPA qw(:DEFAULT :match); |
use DateTime::TimeZone; |
use DateTime::TimeZone; |
use DateTime::Locale::Catalog; |
use DateTime::Locale::Catalog; |
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use Text::Aspell; |
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use Authen::Captcha; |
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use Captcha::reCAPTCHA; |
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# ---------------------------------------------- Designs |
# ---------------------------------------------- Designs |
use vars qw(%defaultdesign); |
use vars qw(%defaultdesign); |
Line 887 sub check_uncheck_jscript {
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Line 890 sub check_uncheck_jscript {
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function checkAll(field) { |
function checkAll(field) { |
if (field.length > 0) { |
if (field.length > 0) { |
for (i = 0; i < field.length; i++) { |
for (i = 0; i < field.length; i++) { |
field[i].checked = true ; |
if (!field[i].disabled) { |
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field[i].checked = true; |
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} |
} |
} |
} else { |
} else { |
field.checked = true |
if (!field.disabled) { |
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field.checked = true; |
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} |
} |
} |
} |
} |
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Line 3015 sub get_related_words {
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Line 3022 sub get_related_words {
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untie %thesaurus_db; |
untie %thesaurus_db; |
return @Words; |
return @Words; |
} |
} |
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############################################################### |
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# |
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# Spell checking |
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# |
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=pod |
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=head1 Spell checking |
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=over 4 |
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=item * &check_spelling($wordlist $language) |
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Takes a string containing words and feeds it to an external |
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spellcheck program via a pipeline. Returns a string containing |
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them mis-spelled words. |
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Parameters: |
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=over 4 |
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=item - $wordlist |
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String that will be fed into the spellcheck program. |
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=item - $language |
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Language string that specifies the language for which the spell |
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check will be performed. |
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=back |
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=back |
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Note: This sub assumes that aspell is installed. |
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=cut |
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=pod |
=pod |
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Line 3022 sub get_related_words {
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Line 3068 sub get_related_words {
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=cut |
=cut |
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sub check_spelling { |
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my ($wordlist, $language) = @_; |
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my @misspellings; |
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# Generate the speller and set the langauge. |
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# if explicitly selected: |
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my $speller = Text::Aspell->new; |
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if ($language) { |
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$speller->set_option('lang', $language); |
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} |
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# Turn the word list into an array of words by splittingon whitespace |
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my @words = split(/\s+/, $wordlist); |
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foreach my $word (@words) { |
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if(! $speller->check($word)) { |
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push(@misspellings, $word); |
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} |
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} |
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return join(' ', @misspellings); |
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} |
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# -------------------------------------------------------------- Plaintext name |
# -------------------------------------------------------------- Plaintext name |
=pod |
=pod |
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Line 13807 sub init_user_environment {
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Line 13878 sub init_user_environment {
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\%userenv,\%domdef,\%is_adv); |
\%userenv,\%domdef,\%is_adv); |
} |
} |
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$userenv{'canrequest.author'} = |
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&Apache::lonnet::usertools_access($username,$domain,'requestauthor', |
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'reload','requestauthor', |
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\%userenv,\%domdef,\%is_adv); |
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my %reqauthor = &Apache::lonnet::get('requestauthor',['author_status','author'], |
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$domain,$username); |
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my $reqstatus = $reqauthor{'author_status'}; |
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if ($reqstatus eq 'approval' || $reqstatus eq 'approved') { |
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if (ref($reqauthor{'author'}) eq 'HASH') { |
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$userenv{'requestauthorqueued'} = $reqstatus.':'. |
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$reqauthor{'author'}{'timestamp'}; |
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} |
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} |
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$env{'user.environment'} = "$lonids/$cookie.id"; |
$env{'user.environment'} = "$lonids/$cookie.id"; |
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if (tie(my %disk_env,'GDBM_File',"$lonids/$cookie.id", |
if (tie(my %disk_env,'GDBM_File',"$lonids/$cookie.id", |
Line 13981 sub parse_supplemental_title {
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Line 14066 sub parse_supplemental_title {
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return $title; |
return $title; |
} |
} |
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sub captcha_display { |
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my ($context,$lonhost) = @_; |
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my ($output,$error); |
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my ($captcha,$pubkey,$privkey) = &get_captcha_config($context,$lonhost); |
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if ($captcha eq 'captcha') { |
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$output = &create_captcha(); |
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unless ($output) { |
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$error = 'captcha'; |
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} |
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} elsif ($captcha eq 'recaptcha') { |
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$output = &create_recaptcha($pubkey); |
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unless ($output) { |
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$error = 'recpatcha'; |
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} |
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} |
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return ($output,$error); |
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} |
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sub captcha_response { |
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my ($context,$lonhost) = @_; |
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my ($captcha_chk,$captcha_error); |
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my ($captcha,$pubkey,$privkey) = &get_captcha_config($context,$lonhost); |
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if ($captcha eq 'captcha') { |
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($captcha_chk,$captcha_error) = &check_captcha(); |
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} elsif ($captcha eq 'recaptcha') { |
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$captcha_chk = &check_recaptcha($privkey); |
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} else { |
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$captcha_chk = 1; |
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} |
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return ($captcha_chk,$captcha_error); |
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} |
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sub get_captcha_config { |
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my ($context,$lonhost) = @_; |
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my ($captcha,$pubkey,$privkey); |
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my $hostname = &Apache::lonnet::hostname($lonhost); |
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my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname); |
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my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID); |
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my %domconfig = &Apache::lonnet::get_dom('configuration',[$context],$serverhomedom); |
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if (ref($domconfig{$context}) eq 'HASH') { |
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if ($domconfig{$context}{'captcha'} eq 'recaptcha') { |
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if (ref($domconfig{$context}{'recaptchakeys'}) eq 'HASH') { |
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$pubkey = $domconfig{$context}{'recaptchakeys'}{'public'}; |
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$privkey = $domconfig{$context}{'recaptchakeys'}{'private'}; |
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} |
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if ($privkey && $pubkey) { |
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$captcha = 'recaptcha'; |
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} |
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} elsif ($domconfig{$context}{'captcha'} eq 'notused') { |
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$captcha = ''; |
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} elsif ($domconfig{$context}{'captcha'} eq 'captcha') { |
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$captcha = 'captcha'; |
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} else { |
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if ($context eq 'usercreation') { |
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$captcha = 'captcha'; |
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} |
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} |
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} |
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return ($captcha,$pubkey,$privkey); |
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} |
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sub create_captcha { |
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my %captcha_params = &captcha_settings(); |
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my ($output,$maxtries,$tries) = ('',10,0); |
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while ($tries < $maxtries) { |
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$tries ++; |
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my $captcha = Authen::Captcha->new ( |
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output_folder => $captcha_params{'output_dir'}, |
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data_folder => $captcha_params{'db_dir'}, |
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); |
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my $md5sum = $captcha->generate_code($captcha_params{'numchars'}); |
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if (-e $Apache::lonnet::perlvar{'lonCaptchaDir'}.'/'.$md5sum.'.png') { |
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$output = '<input type="hidden" name="crypt" value="'.$md5sum.'" />'."\n". |
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&mt('Type in the letters/numbers shown below').' '. |
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'<input type="text" size="5" name="code" value="" /><br />'. |
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'<img src="'.$captcha_params{'www_output_dir'}.'/'.$md5sum.'.png" />'; |
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last; |
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} |
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} |
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return $output; |
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} |
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sub captcha_settings { |
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my %captcha_params = ( |
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output_dir => $Apache::lonnet::perlvar{'lonCaptchaDir'}, |
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www_output_dir => "/captchaspool", |
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db_dir => $Apache::lonnet::perlvar{'lonCaptchaDb'}, |
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numchars => '5', |
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); |
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return %captcha_params; |
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} |
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sub check_captcha { |
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my ($captcha_chk,$captcha_error); |
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my $code = $env{'form.code'}; |
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my $md5sum = $env{'form.crypt'}; |
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my %captcha_params = &captcha_settings(); |
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my $captcha = Authen::Captcha->new( |
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output_folder => $captcha_params{'output_dir'}, |
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data_folder => $captcha_params{'db_dir'}, |
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); |
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my $captcha_chk = $captcha->check_code($code,$md5sum); |
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my %captcha_hash = ( |
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0 => 'Code not checked (file error)', |
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-1 => 'Failed: code expired', |
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-2 => 'Failed: invalid code (not in database)', |
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-3 => 'Failed: invalid code (code does not match crypt)', |
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); |
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if ($captcha_chk != 1) { |
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$captcha_error = $captcha_hash{$captcha_chk} |
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} |
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return ($captcha_chk,$captcha_error); |
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} |
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sub create_recaptcha { |
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my ($pubkey) = @_; |
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my $captcha = Captcha::reCAPTCHA->new; |
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return $captcha->get_options_setter({theme => 'white'})."\n". |
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$captcha->get_html($pubkey). |
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&mt('If either word is hard to read, [_1] will replace them.', |
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'<image src="/res/adm/pages/refresh.gif" alt="reCAPTCHA refresh" />'). |
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'<br /><br />'; |
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} |
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sub check_recaptcha { |
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my ($privkey) = @_; |
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my $captcha_chk; |
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my $captcha = Captcha::reCAPTCHA->new; |
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my $captcha_result = |
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$captcha->check_answer( |
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$privkey, |
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$ENV{'REMOTE_ADDR'}, |
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$env{'form.recaptcha_challenge_field'}, |
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$env{'form.recaptcha_response_field'}, |
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); |
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if ($captcha_result->{is_valid}) { |
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$captcha_chk = 1; |
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} |
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return $captcha_chk; |
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} |
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=pod |
=pod |
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=back |
=back |