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version 1.139, 2011/08/04 10:57:26
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version 1.163, 2021/04/29 14:54:36
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Line 42 use Safe::Hole;
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Line 42 use Safe::Hole;
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| use Opcode; |
use Opcode; |
| use Apache::lonenc; |
use Apache::lonenc; |
| use Fcntl qw(:flock); |
use Fcntl qw(:flock); |
| use LONCAPA; |
use LONCAPA qw(:DEFAULT :match); |
| use File::Basename; |
use File::Basename; |
| |
|
| |
|
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Line 59 my $retfurl; # first URL
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Line 59 my $retfurl; # first URL
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| my %randompick; # randomly picked resources |
my %randompick; # randomly picked resources |
| my %randompickseed; # optional seed for randomly picking resources |
my %randompickseed; # optional seed for randomly picking resources |
| my %randomorder; # maps to order contents randomly |
my %randomorder; # maps to order contents randomly |
| |
my %randomizationcode; # code used to grade folder for bubblesheet exam |
| my %encurl; # URLs in this folder are supposed to be encrypted |
my %encurl; # URLs in this folder are supposed to be encrypted |
| my %hiddenurl; # this URL (or complete folder) is supposed to be hidden |
my %hiddenurl; # this URL (or complete folder) is supposed to be hidden |
| |
my %deeplinkonly; # this URL (or complete folder) is deep-link only |
| |
my %rescount; # count of unhidden items in each map |
| |
my %mapcount; # count of unhidden maps in each map |
| |
|
| # ----------------------------------- Remove version from URL and store in hash |
# ----------------------------------- Remove version from URL and store in hash |
| |
|
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Line 131 sub processversionfile {
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Line 135 sub processversionfile {
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| |
|
| # --------------------------------------------------------- Loads from disk |
# --------------------------------------------------------- Loads from disk |
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|
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|
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# |
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# Loads a map file. |
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# Note that this may implicitly recurse via parse_resource if one of the resources |
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# is itself composed. |
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# |
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# Parameters: |
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# uri - URI of the map file. |
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# parent_rid - Resource id in the map of the parent resource (0.0 for the top level map) |
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# courseid - Course id for the course for which the map is being loaded |
| |
# |
| sub loadmap { |
sub loadmap { |
| my ($uri,$parent_rid)=@_; |
my ($uri,$parent_rid,$courseid)=@_; |
| |
|
| # Is the map already included? |
# Is the map already included? |
| |
|
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Line 172 sub loadmap {
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Line 187 sub loadmap {
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| # We can only nest sequences or pages. Anything else is an illegal nest. |
# We can only nest sequences or pages. Anything else is an illegal nest. |
| |
|
| unless (($fn=~/\.sequence$/) || $ispage) { |
unless (($fn=~/\.sequence$/) || $ispage) { |
| $errtext.=&mt("<br />Invalid map: <tt>[_1]</tt>",$fn); |
$errtext.='<br />'.&mt('Invalid map: [_1]',"<tt>$fn</tt>"); |
| return; |
return; |
| } |
} |
| |
|
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Line 181 sub loadmap {
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Line 196 sub loadmap {
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| my $instr=&Apache::lonnet::getfile($fn); |
my $instr=&Apache::lonnet::getfile($fn); |
| |
|
| if ($instr eq -1) { |
if ($instr eq -1) { |
| $errtext.=&mt('<br />Map not loaded: The file <tt>[_1]</tt> does not exist.',$fn); |
$errtext.= '<br />' |
| |
.&mt('Map not loaded: The file [_1] does not exist.', |
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"<tt>$fn</tt>"); |
| return; |
return; |
| } |
} |
| |
|
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Line 225 sub loadmap {
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Line 242 sub loadmap {
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| # This is handled in the next chunk of code. |
# This is handled in the next chunk of code. |
| |
|
| my @map_ids; |
my @map_ids; |
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my $codechecked; |
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$rescount{$lpc} = 0; |
| |
$mapcount{$lpc} = 0; |
| while (my $token = $parser->get_token) { |
while (my $token = $parser->get_token) { |
| next if ($token->[0] ne 'S'); |
next if ($token->[0] ne 'S'); |
| |
|
| # Resource |
# Resource |
| |
|
| if ($token->[1] eq 'resource') { |
if ($token->[1] eq 'resource') { |
| my $resource_id = &parse_resource($token,$lpc,$ispage,$uri); |
my $resource_id = &parse_resource($token,$lpc,$ispage,$uri,$courseid); |
| if (defined $resource_id) { |
if (defined $resource_id) { |
| push(@map_ids, $resource_id); |
push(@map_ids, $resource_id); |
| |
if ($hash{'src_'.$lpc.'.'.$resource_id}) { |
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$rescount{$lpc} ++; |
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if (($hash{'src_'.$lpc.'.'.$resource_id}=~/\.sequence$/) || |
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($hash{'src_'.$lpc.'.'.$resource_id}=~/\.page$/)) { |
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$mapcount{$lpc} ++; |
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} |
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} |
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unless ($codechecked) { |
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my $startsymb = |
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&Apache::lonnet::encode_symb($hash{'map_id_'.$lpc},$resource_id, |
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$hash{'src_'."$lpc.$resource_id"}); |
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my $code = |
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&Apache::lonnet::EXT('resource.0.examcode',$startsymb,undef,undef, |
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undef,undef,$courseid); |
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if ($code) { |
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$randomizationcode{$parent_rid} = $code; |
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} |
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$codechecked = 1; |
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} |
| } |
} |
| |
|
| # Link |
# Link |
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Line 249 sub loadmap {
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Line 288 sub loadmap {
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| &parse_condition($token,$lpc); |
&parse_condition($token,$lpc); |
| } |
} |
| } |
} |
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undef($codechecked); |
| |
|
| # Handle randomization and random selection |
# Handle randomization and random selection |
| |
|
| if ($randomize) { |
if ($randomize) { |
| if (!$env{'request.role.adv'}) { |
unless (&is_advanced($courseid)) { |
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# Order of resources is not randomized if user has and advanced role in the course. |
| my $seed; |
my $seed; |
| |
|
| # In the advanced role, the map's random seed |
# If the map's random seed parameter has been specified |
| # parameter is used as the basis for computing the |
# it is used as the basis for computing the seed ... |
| # seed ... if it has been specified: |
|
| |
|
| if (defined($randompickseed{$parent_rid})) { |
if (defined($randompickseed{$parent_rid})) { |
| $seed = $randompickseed{$parent_rid}; |
$seed = $randompickseed{$parent_rid}; |
|
Line 278 sub loadmap {
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Line 317 sub loadmap {
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| # TODO: Here for sure we need to pass along the username/domain |
# TODO: Here for sure we need to pass along the username/domain |
| # so that we can impersonate users in lonprintout e.g. |
# so that we can impersonate users in lonprintout e.g. |
| |
|
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my $setcode; |
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if (defined($randomizationcode{$parent_rid})) { |
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if ($env{'form.CODE'} eq '') { |
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$env{'form.CODE'} = $randomizationcode{$parent_rid}; |
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$setcode = 1; |
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} |
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} |
| |
|
| my $rndseed=&Apache::lonnet::rndseed($seed); |
my $rndseed=&Apache::lonnet::rndseed($seed); |
| &Apache::lonnet::setup_random_from_rndseed($rndseed); |
&Apache::lonnet::setup_random_from_rndseed($rndseed); |
| @map_ids=&math::Random::random_permutation(@map_ids); # randomorder. |
|
| } |
|
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|
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if ($setcode) { |
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undef($env{'form.CODE'}); |
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undef($setcode); |
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} |
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|
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# Take the set of map ids we have decoded and permute them to a |
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# random order based on the seed set above. All of this is |
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# processing the randomorder parameter if it is set, not |
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# randompick. |
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|
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@map_ids=&Math::Random::random_permutation(@map_ids); |
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} |
| |
|
| my $from = shift(@map_ids); |
my $from = shift(@map_ids); |
| my $from_rid = $lpc.'.'.$from; |
my $from_rid = $lpc.'.'.$from; |
| $hash{'map_start_'.$uri} = $from_rid; |
$hash{'map_start_'.$uri} = $from_rid; |
| $hash{'type_'.$from_rid}='start'; |
$hash{'type_'.$from_rid}='start'; |
| |
|
| # Create links to reflect this random ordering. |
# Create links to reflect the random re-ordering done above. |
| # BUG? If there are conditions, this invalidates them? Then again |
# In the code to process the map XML, we did not process links or conditions |
| # with randompick there's no gaurentee the resources required for the |
# if randomorder was set. This means that for an instructor to choose |
| # conditinos to work will be selected into the map. |
|
| # so randompick is inconsistent with a map that has conditions? |
|
| |
|
| while (my $to = shift(@map_ids)) { |
while (my $to = shift(@map_ids)) { |
| &make_link(++$linkpc,$lpc,$to,$from); |
&make_link(++$linkpc,$lpc,$to,$from); |
|
Line 310 sub loadmap {
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Line 365 sub loadmap {
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| $parser = HTML::TokeParser->new(\$instr); |
$parser = HTML::TokeParser->new(\$instr); |
| $parser->attr_encoded(1); |
$parser->attr_encoded(1); |
| |
|
| # last parse out the mapalias params so as to ignore anything |
# last parse out the mapalias params. These provide mnemonic |
| # refering to non-existant resources |
# tags to resources that can be used in conditions |
| |
|
| while (my $token = $parser->get_token) { |
while (my $token = $parser->get_token) { |
| next if ($token->[0] ne 'S'); |
next if ($token->[0] ne 'S'); |
|
Line 321 sub loadmap {
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Line 376 sub loadmap {
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| } |
} |
| } |
} |
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|
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sub is_advanced { |
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my ($courseid) = @_; |
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my $advanced; |
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if ($env{'request.course.id'}) { |
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$advanced = (&Apache::lonnet::allowed('adv') eq 'F'); |
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} else { |
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$env{'request.course.id'} = $courseid; |
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$advanced = (&Apache::lonnet::allowed('adv') eq 'F'); |
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$env{'request.course.id'} = ''; |
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} |
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return $advanced; |
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} |
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|
| # -------------------------------------------------------------------- Resource |
# -------------------------------------------------------------------- Resource |
| # |
# |
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Line 337 sub loadmap {
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Line 404 sub loadmap {
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| # $lpc - Map nesting level (?) |
# $lpc - Map nesting level (?) |
| # $ispage - True if this resource is encapsulated in a .page (assembled resourcde). |
# $ispage - True if this resource is encapsulated in a .page (assembled resourcde). |
| # $uri - URI of the enclosing resource. |
# $uri - URI of the enclosing resource. |
| |
# $courseid - Course id of the course containing the resource being parsed. |
| # Returns: |
# Returns: |
| # Value of the id attribute of the tag. |
# Value of the id attribute of the tag. |
| # |
# |
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Line 357 sub loadmap {
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Line 425 sub loadmap {
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|
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|
| sub parse_resource { |
sub parse_resource { |
| my ($token,$lpc,$ispage,$uri) = @_; |
my ($token,$lpc,$ispage,$uri,$courseid) = @_; |
| |
|
| # I refuse to countenance code like this that has |
# I refuse to countenance code like this that has |
| # such a dirty side effect (and forcing this sub to be called within a loop). |
# such a dirty side effect (and forcing this sub to be called within a loop). |
|
Line 406 sub parse_resource {
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Line 474 sub parse_resource {
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| # is not a page. If the resource is a page then it must be |
# is not a page. If the resource is a page then it must be |
| # assembled (at fetch time?). |
# assembled (at fetch time?). |
| |
|
| unless ($ispage) { |
if ($ispage) { |
| |
if ($token->[2]->{'external'} eq 'true') { # external |
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$turi=~s{^http\://}{/ext/}; |
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} |
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} else { |
| $turi=~/\.(\w+)$/; |
$turi=~/\.(\w+)$/; |
| my $embstyle=&Apache::loncommon::fileembstyle($1); |
my $embstyle=&Apache::loncommon::fileembstyle($1); |
| if ($token->[2]->{'external'} eq 'true') { # external |
if ($token->[2]->{'external'} eq 'true') { # external |
|
Line 421 sub parse_resource {
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Line 493 sub parse_resource {
|
| } elsif ($turi!~/\.(sequence|page)$/) { |
} elsif ($turi!~/\.(sequence|page)$/) { |
| $turi='/adm/coursedocs/showdoc'.$turi; |
$turi='/adm/coursedocs/showdoc'.$turi; |
| } |
} |
| |
} elsif ($turi=~ m{^/adm/$match_domain/$match_courseid/\d+/ext\.tool$}) { |
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$turi='/adm/wrapper'.$turi; |
| } elsif ($turi=~/\S/) { # normal non-empty internal resource |
} elsif ($turi=~/\S/) { # normal non-empty internal resource |
| my $mapdir=$uri; |
my $mapdir=$uri; |
| $mapdir=~s/[^\/]+$//; |
$mapdir=~s/[^\/]+$//; |
|
Line 496 sub parse_resource {
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Line 570 sub parse_resource {
|
| if (($turi=~/\.sequence$/) || |
if (($turi=~/\.sequence$/) || |
| ($turi=~/\.page$/)) { |
($turi=~/\.page$/)) { |
| $hash{'is_map_'.$rid}=1; |
$hash{'is_map_'.$rid}=1; |
| &loadmap($turi,$rid); |
if ((!$hiddenurl{$rid}) || (&is_advanced($courseid))) { |
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&loadmap($turi,$rid,$courseid); |
| |
} |
| } |
} |
| return $token->[2]->{'id'}; |
return $token->[2]->{'id'}; |
| } |
} |
|
Line 652 sub parse_condition {
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Line 728 sub parse_condition {
|
| # Typical attributes: |
# Typical attributes: |
| # to=n - Number of the resource the parameter applies to. |
# to=n - Number of the resource the parameter applies to. |
| # type=xx - Type of parameter value (e.g. string_yesno or int_pos). |
# type=xx - Type of parameter value (e.g. string_yesno or int_pos). |
| # name=xxx - Name ofr parameter (e.g. parameter_randompick or parameter_randomorder). |
# name=xxx - Name of parameter (e.g. parameter_randompick or parameter_randomorder). |
| # value=xxx - value of the parameter. |
# value=xxx - value of the parameter. |
| |
|
| sub parse_param { |
sub parse_param { |
|
Line 721 sub parse_param {
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Line 797 sub parse_param {
|
| } |
} |
| } |
} |
| } |
} |
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# |
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# Parse mapalias parameters. |
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# these are tags of the form: |
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# <param to="nn" |
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# value="some-alias-for-resourceid-nn" |
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# name="parameter_0_mapalias" |
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# type="string" /> |
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# A map alias is a textual name for a resource: |
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# - The to attribute identifies the resource (this gets level qualified below) |
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# - The value attributes provides the alias string. |
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# - name must be of the regexp form: /^parameter_(0_)*mapalias$/ |
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# - e.g. the string 'parameter_' followed by 0 or more "0_" strings |
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# terminating with the string 'mapalias'. |
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# Examples: |
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# 'parameter_mapalias', 'parameter_0_mapalias', parameter_0_0_mapalias' |
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# Invalid to ids are silently ignored. |
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# |
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# Parameters: |
| |
# token - The token array fromthe HMTML::TokeParser |
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# lpc - The current map level counter. |
| |
# |
| sub parse_mapalias_param { |
sub parse_mapalias_param { |
| my ($token,$lpc) = @_; |
my ($token,$lpc) = @_; |
| |
|
| |
# Fully qualify the to value and ignore the alias if there is no |
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# corresponding resource. |
| |
|
| my $referid=$lpc.'.'.$token->[2]->{'to'}; |
my $referid=$lpc.'.'.$token->[2]->{'to'}; |
| return if (!exists($hash{'src_'.$referid})); |
return if (!exists($hash{'src_'.$referid})); |
| |
|
| |
# If this is a valid mapalias parameter, |
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# Append the target id to the count_mapalias element for that |
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# alias so that we can detect doubly defined aliases |
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# e.g.: |
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# <param to="1" value="george" name="parameter_0_mapalias" type="string" /> |
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# <param to="2" value="george" name="parameter_0_mapalias" type="string" /> |
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# |
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# The example above is trivial but the case that's important has to do with |
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# constructing a map that includes a nested map where the nested map may have |
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# aliases that conflict with aliases established in the enclosing map. |
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# |
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# ...and create/update the hash mapalias entry to actually store the alias. |
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# |
| |
|
| if ($token->[2]->{'name'}=~/^parameter_(0_)*mapalias$/) { |
if ($token->[2]->{'name'}=~/^parameter_(0_)*mapalias$/) { |
| &count_mapalias($token->[2]->{'value'},$referid); |
&count_mapalias($token->[2]->{'value'},$referid); |
| $hash{'mapalias_'.$token->[2]->{'value'}}=$referid; |
$hash{'mapalias_'.$token->[2]->{'value'}}=$referid; |
|
Line 735 sub parse_mapalias_param {
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Line 849 sub parse_mapalias_param {
|
| |
|
| # --------------------------------------------------------- Simplify expression |
# --------------------------------------------------------- Simplify expression |
| |
|
| |
|
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# |
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# Someone should really comment this to describe what it does to what and why. |
| |
# |
| sub simplify { |
sub simplify { |
| my $expression=shift; |
my $expression=shift; |
| # (0&1) = 1 |
# (0&1) = 1 |
|
Line 744 sub simplify {
|
Line 862 sub simplify {
|
| # 8&8=8 |
# 8&8=8 |
| $expression=~s/([^_\.\d])([_\.\d]+)\&\2([^_\.\d])/$1$2$3/g; |
$expression=~s/([^_\.\d])([_\.\d]+)\&\2([^_\.\d])/$1$2$3/g; |
| # 8|8=8 |
# 8|8=8 |
| $expression=~s/([^_\.\d])([_\.\d]+)\|\2([^_\.\d])/$1$2$3/g; |
$expression=~s/([^_\.\d])([_\.\d]+)(?:\|\2)+([^_\.\d])/$1$2$3/g; |
| # (5&3)&4=5&3&4 |
# (5&3)&4=5&3&4 |
| $expression=~s/\(([_\.\d]+)((?:\&[_\.\d]+)+)\)\&([_\.\d]+[^_\.\d])/$1$2\&$3/g; |
$expression=~s/\(([_\.\d]+)((?:\&[_\.\d]+)+)\)\&([_\.\d]+[^_\.\d])/$1$2\&$3/g; |
| # (((5&3)|(4&6)))=((5&3)|(4&6)) |
# (((5&3)|(4&6)))=((5&3)|(4&6)) |
|
Line 758 sub simplify {
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Line 876 sub simplify {
|
| |
|
| # -------------------------------------------------------- Build condition hash |
# -------------------------------------------------------- Build condition hash |
| |
|
| |
# |
| |
# Traces a route recursively through the map after it has been loaded |
| |
# (I believe this really visits each resourcde that is reachable fromt he |
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# start top node. |
| |
# |
| |
# - Marks hidden resources as hidden. |
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# - Marks which resource URL's must be encrypted. |
| |
# - Figures out (if necessary) the first resource in the map. |
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# - Further builds the chunks of the big hash that define how |
| |
# conditions work |
| |
# |
| |
# Note that the tracing strategy won't visit resources that are not linked to |
| |
# anything or islands in the map (groups of resources that form a path but are not |
| |
# linked in to the path that can be traced from the start resource...but that's ok |
| |
# because by definition, those resources are not reachable by users of the course. |
| |
# |
| |
# Parameters: |
| |
# sofar - _URI of the prior entry or 0 if this is the top. |
| |
# rid - URI of the resource to visit. |
| |
# beenhere - list of resources (each resource enclosed by &'s) that have |
| |
# already been visited. |
| |
# encflag - If true the resource that resulted in a recursive call to us |
| |
# has an encoded URL (which means contained resources should too). |
| |
# hdnflag - If true,the resource that resulted in a recursive call to us |
| |
# was hidden (which means contained resources should be hidden too). |
| |
# Returns |
| |
# new value indicating how far the map has been traversed (the sofar). |
| |
# |
| sub traceroute { |
sub traceroute { |
| my ($sofar,$rid,$beenhere,$encflag,$hdnflag)=@_; |
my ($sofar,$rid,$beenhere,$encflag,$hdnflag)=@_; |
| my $newsofar=$sofar=simplify($sofar); |
my $newsofar=$sofar=simplify($sofar); |
| |
|
| unless ($beenhere=~/\&\Q$rid\E\&/) { |
unless ($beenhere=~/\&\Q$rid\E\&/) { |
| $beenhere.=$rid.'&'; |
$beenhere.=$rid.'&'; |
| my ($mapid,$resid)=split(/\./,$rid); |
my ($mapid,$resid)=split(/\./,$rid); |
|
Line 776 sub traceroute {
|
Line 923 sub traceroute {
|
| |
|
| my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb); |
my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb); |
| if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; } |
if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; } |
| |
|
| if (($retfrid eq '') && ($hash{'src_'.$rid}) |
if (($retfrid eq '') && ($hash{'src_'.$rid}) |
| && ($hash{'src_'.$rid}!~/\.sequence$/)) { |
&& ($hash{'src_'.$rid}!~/\.sequence$/)) { |
| $retfrid=$rid; |
$retfrid=$rid; |
| } |
} |
| |
my @deeplink=&Apache::lonnet::EXT('resource.0.deeplink',$symb); |
| |
unless ((@deeplink == 0) || ($deeplink[0] eq 'full')) { |
| |
$deeplinkonly{$rid}=join(':',@deeplink); |
| |
if ($deeplink[1] eq 'map') { |
| |
my $parent = (split(/\,/,$hash{'map_hierarchy_'.$mapid}))[-1]; |
| |
$deeplinkonly{"$parent.$mapid"}=$deeplinkonly{$rid}; |
| |
} |
| |
} |
| |
|
| if (defined($hash{'conditions_'.$rid})) { |
if (defined($hash{'conditions_'.$rid})) { |
| $hash{'conditions_'.$rid}=simplify( |
$hash{'conditions_'.$rid}=simplify( |
| '('.$hash{'conditions_'.$rid}.')|('.$sofar.')'); |
'('.$hash{'conditions_'.$rid}.')|('.$sofar.')'); |
|
Line 789 sub traceroute {
|
Line 946 sub traceroute {
|
| |
|
| # if the expression is just the 0th condition keep it |
# if the expression is just the 0th condition keep it |
| # otherwise leave a pointer to this condition expression |
# otherwise leave a pointer to this condition expression |
| |
|
| $newsofar = ($sofar eq '0') ? $sofar : '_'.$rid; |
$newsofar = ($sofar eq '0') ? $sofar : '_'.$rid; |
| |
|
| |
# Recurse if the resource is a map: |
| |
|
| if (defined($hash{'is_map_'.$rid})) { |
if (defined($hash{'is_map_'.$rid})) { |
| if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
| $sofar=$newsofar= |
$sofar=$newsofar= |
|
Line 801 sub traceroute {
|
Line 961 sub traceroute {
|
| $hdnflag || $hiddenurl{$rid}); |
$hdnflag || $hiddenurl{$rid}); |
| } |
} |
| } |
} |
| |
|
| |
# Processes links to this resource: |
| |
# - verify the existence of any conditionals on the link to here. |
| |
# - Recurse to any resources linked to us. |
| |
# |
| if (defined($hash{'to_'.$rid})) { |
if (defined($hash{'to_'.$rid})) { |
| foreach my $id (split(/\,/,$hash{'to_'.$rid})) { |
foreach my $id (split(/\,/,$hash{'to_'.$rid})) { |
| my $further=$sofar; |
my $further=$sofar; |
| |
# |
| |
# If there's a condition associated with this link be sure |
| |
# it's been defined else that's an error: |
| |
# |
| if ($hash{'undercond_'.$id}) { |
if ($hash{'undercond_'.$id}) { |
| if (defined($hash{'condid_'.$hash{'undercond_'.$id}})) { |
if (defined($hash{'condid_'.$hash{'undercond_'.$id}})) { |
| $further=simplify('('.'_'.$rid.')&('. |
$further=simplify('('.'_'.$rid.')&('. |
| $hash{'condid_'.$hash{'undercond_'.$id}}.')'); |
$hash{'condid_'.$hash{'undercond_'.$id}}.')'); |
| } else { |
} else { |
| $errtext.=&mt('<br />Undefined condition ID: [_1]',$hash{'undercond_'.$id}); |
$errtext.= '<br />'. |
| |
&mt('Undefined condition ID: [_1]', |
| |
$hash{'undercond_'.$id}); |
| } |
} |
| } |
} |
| |
# Recurse to resoruces that have to's to us. |
| $newsofar=&traceroute($further,$hash{'goesto_'.$id},$beenhere, |
$newsofar=&traceroute($further,$hash{'goesto_'.$id},$beenhere, |
| $encflag,$hdnflag); |
$encflag,$hdnflag); |
| } |
} |
|
Line 822 sub traceroute {
|
Line 994 sub traceroute {
|
| |
|
| # ------------------------------ Cascading conditions, quick access, parameters |
# ------------------------------ Cascading conditions, quick access, parameters |
| |
|
| |
# |
| |
# Seems a rather strangely named sub given what the comment above says it does. |
| |
|
| |
|
| sub accinit { |
sub accinit { |
| my ($uri,$short,$fn)=@_; |
my ($uri,$short,$fn)=@_; |
| my %acchash=(); |
my %acchash=(); |
| my %captured=(); |
my %captured=(); |
| my $condcounter=0; |
my $condcounter=0; |
| $acchash{'acc.cond.'.$short.'.0'}=0; |
$acchash{'acc.cond.'.$short.'.0'}=0; |
| |
|
| |
# This loop is only interested in conditions and |
| |
# parameters in the big hash: |
| |
|
| foreach my $key (keys(%hash)) { |
foreach my $key (keys(%hash)) { |
| |
|
| |
# conditions: |
| |
|
| if ($key=~/^conditions/) { |
if ($key=~/^conditions/) { |
| my $expr=$hash{$key}; |
my $expr=$hash{$key}; |
| |
|
| # try to find and factor out common sub-expressions |
# try to find and factor out common sub-expressions |
| |
# Any subexpression that is found is simplified, removed from |
| |
# the original condition expression and the simplified sub-expression |
| |
# substituted back in to the epxression..I'm not actually convinced this |
| |
# factors anything out...but instead maybe simplifies common factors(?) |
| |
|
| foreach my $sub ($expr=~m/(\(\([_\.\d]+(?:\&[_\.\d]+)+\)(?:\|\([_\.\d]+(?:\&[_\.\d]+)+\))+\))/g) { |
foreach my $sub ($expr=~m/(\(\([_\.\d]+(?:\&[_\.\d]+)+\)(?:\|\([_\.\d]+(?:\&[_\.\d]+)+\))+\))/g) { |
| my $orig=$sub; |
my $orig=$sub; |
| |
|
|
Line 845 sub accinit {
|
Line 1034 sub accinit {
|
| $expr=~s/\Q$orig\E/$sub/; |
$expr=~s/\Q$orig\E/$sub/; |
| } |
} |
| $hash{$key}=$expr; |
$hash{$key}=$expr; |
| |
|
| |
# If not yet seen, record in acchash and that we've seen it. |
| |
|
| unless (defined($captured{$expr})) { |
unless (defined($captured{$expr})) { |
| $condcounter++; |
$condcounter++; |
| $captured{$expr}=$condcounter; |
$captured{$expr}=$condcounter; |
| $acchash{'acc.cond.'.$short.'.'.$condcounter}=$expr; |
$acchash{'acc.cond.'.$short.'.'.$condcounter}=$expr; |
| } |
} |
| |
# Parameters: |
| |
|
| } elsif ($key=~/^param_(\d+)\.(\d+)/) { |
} elsif ($key=~/^param_(\d+)\.(\d+)/) { |
| my $prefix=&Apache::lonnet::encode_symb($hash{'map_id_'.$1},$2, |
my $prefix=&Apache::lonnet::encode_symb($hash{'map_id_'.$1},$2, |
| $hash{'src_'.$1.'.'.$2}); |
$hash{'src_'.$1.'.'.$2}); |
|
Line 863 sub accinit {
|
Line 1057 sub accinit {
|
| } |
} |
| } |
} |
| } |
} |
| |
# This loop only processes id entries in the big hash. |
| |
|
| foreach my $key (keys(%hash)) { |
foreach my $key (keys(%hash)) { |
| if ($key=~/^ids/) { |
if ($key=~/^ids/) { |
| foreach my $resid (split(/\,/,$hash{$key})) { |
foreach my $resid (split(/\,/,$hash{$key})) { |
|
Line 906 sub accinit {
|
Line 1102 sub accinit {
|
| |
|
| sub hiddenurls { |
sub hiddenurls { |
| my $randomoutentry=''; |
my $randomoutentry=''; |
| foreach my $rid (keys %randompick) { |
foreach my $rid (keys(%randompick)) { |
| my $rndpick=$randompick{$rid}; |
my $rndpick=$randompick{$rid}; |
| my $mpc=$hash{'map_pc_'.$hash{'src_'.$rid}}; |
my $mpc=$hash{'map_pc_'.$hash{'src_'.$rid}}; |
| # ------------------------------------------- put existing resources into array |
# ------------------------------------------- put existing resources into array |
|
Line 927 sub hiddenurls {
|
Line 1123 sub hiddenurls {
|
| # -------------------------------- randomly eliminate the ones that should stay |
# -------------------------------- randomly eliminate the ones that should stay |
| my (undef,$id)=split(/\./,$rid); |
my (undef,$id)=split(/\./,$rid); |
| if ($randompickseed{$rid}) { $id=$randompickseed{$rid}; } |
if ($randompickseed{$rid}) { $id=$randompickseed{$rid}; } |
| |
my $setcode; |
| |
if (defined($randomizationcode{$rid})) { |
| |
if ($env{'form.CODE'} eq '') { |
| |
$env{'form.CODE'} = $randomizationcode{$rid}; |
| |
$setcode = 1; |
| |
} |
| |
} |
| my $rndseed=&Apache::lonnet::rndseed($id); # use id instead of symb |
my $rndseed=&Apache::lonnet::rndseed($id); # use id instead of symb |
| |
if ($setcode) { |
| |
undef($env{'form.CODE'}); |
| |
undef($setcode); |
| |
} |
| &Apache::lonnet::setup_random_from_rndseed($rndseed); |
&Apache::lonnet::setup_random_from_rndseed($rndseed); |
| my @whichids=&Math::Random::random_permuted_index($#currentrids+1); |
my @whichids=&Math::Random::random_permuted_index($#currentrids+1); |
| for (my $i=1;$i<=$rndpick;$i++) { $currentrids[$whichids[$i]]=''; } |
for (my $i=1;$i<=$rndpick;$i++) { $currentrids[$whichids[$i]]=''; } |
|
Line 937 sub hiddenurls {
|
Line 1144 sub hiddenurls {
|
| if ($currentrids[$k]) { |
if ($currentrids[$k]) { |
| $hash{'randomout_'.$currentrids[$k]}=1; |
$hash{'randomout_'.$currentrids[$k]}=1; |
| my ($mapid,$resid)=split(/\./,$currentrids[$k]); |
my ($mapid,$resid)=split(/\./,$currentrids[$k]); |
| |
if ($rescount{$mapid}) { |
| |
$rescount{$mapid} --; |
| |
} |
| |
if ($hash{'is_map_'.$currentrids[$k]}) { |
| |
if ($mapcount{$mapid}) { |
| |
$mapcount{$mapid} --; |
| |
} |
| |
} |
| $randomoutentry.='&'. |
$randomoutentry.='&'. |
| &Apache::lonnet::encode_symb($hash{'map_id_'.$mapid}, |
&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid}, |
| $resid, |
$resid, |
|
Line 946 sub hiddenurls {
|
Line 1161 sub hiddenurls {
|
| } |
} |
| } |
} |
| # ------------------------------ take care of explicitly hidden urls or folders |
# ------------------------------ take care of explicitly hidden urls or folders |
| foreach my $rid (keys %hiddenurl) { |
foreach my $rid (keys(%hiddenurl)) { |
| $hash{'randomout_'.$rid}=1; |
$hash{'randomout_'.$rid}=1; |
| my ($mapid,$resid)=split(/\./,$rid); |
my ($mapid,$resid)=split(/\./,$rid); |
| |
if ($rescount{$mapid}) { |
| |
$rescount{$mapid} --; |
| |
} |
| |
if ($hash{'is_map_'.$rid}) { |
| |
if ($mapcount{$mapid}) { |
| |
$mapcount{$mapid} --; |
| |
} |
| |
} |
| $randomoutentry.='&'. |
$randomoutentry.='&'. |
| &Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid, |
&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid, |
| $hash{'src_'.$rid}).'&'; |
$hash{'src_'.$rid}).'&'; |
|
Line 959 sub hiddenurls {
|
Line 1182 sub hiddenurls {
|
| } |
} |
| } |
} |
| |
|
| |
# -------------------------------------- populate big hash with map breadcrumbs |
| |
|
| |
# Create map_breadcrumbs_$pc from map_hierarchy_$pc by omitting intermediate |
| |
# maps not shown in Course Contents table. |
| |
|
| |
sub mapcrumbs { |
| |
foreach my $key (keys(%rescount)) { |
| |
if ($hash{'map_hierarchy_'.$key}) { |
| |
my $skipnext = 0; |
| |
foreach my $id (split(/,/,$hash{'map_hierarchy_'.$key}),$key) { |
| |
unless ($skipnext) { |
| |
$hash{'map_breadcrumbs_'.$key} .= "$id,"; |
| |
} |
| |
unless (($id == 0) || ($id == 1)) { |
| |
if ((!$rescount{$id}) || ($rescount{$id} == 1 && $mapcount{$id} == 1)) { |
| |
$skipnext = 1; |
| |
} else { |
| |
$skipnext = 0; |
| |
} |
| |
} |
| |
} |
| |
$hash{'map_breadcrumbs_'.$key} =~ s/,$//; |
| |
} |
| |
} |
| |
} |
| |
|
| # ---------------------------------------------------- Read map and all submaps |
# ---------------------------------------------------- Read map and all submaps |
| |
|
| sub readmap { |
sub readmap { |
| my $short=shift; |
my ($short,$critmsg_check) = @_; |
| $short=~s/^\///; |
$short=~s/^\///; |
| |
|
| # TODO: Hidden dependency on current user: |
# TODO: Hidden dependency on current user: |
|
Line 979 sub readmap {
|
Line 1228 sub readmap {
|
| } |
} |
| @cond=('true:normal'); |
@cond=('true:normal'); |
| |
|
| unless (open(LOCKFILE,">$fn.db.lock")) { |
unless (open(LOCKFILE,">","$fn.db.lock")) { |
| # |
# |
| # Most likely a permissions problem on the lockfile or its directory. |
# Most likely a permissions problem on the lockfile or its directory. |
| # |
# |
| $errtext.='<br />'.&mt('Map not loaded - Lock file could not be opened when reading map:').' <tt>'.$fn.'</tt>.'; |
|
| $retfurl = ''; |
$retfurl = ''; |
| return ($retfurl,$errtext); |
return ($retfurl,'<br />'.&mt('Map not loaded - Lock file could not be opened when reading map:').' <tt>'.$fn.'</tt>.'); |
| } |
} |
| my $lock=0; |
my $lock=0; |
| my $gotstate=0; |
my $gotstate=0; |
|
Line 998 sub readmap {
|
Line 1246 sub readmap {
|
| &unlink_tmpfiles($fn); |
&unlink_tmpfiles($fn); |
| } |
} |
| undef %randompick; |
undef %randompick; |
| |
undef %randompickseed; |
| |
undef %randomorder; |
| |
undef %randomizationcode; |
| undef %hiddenurl; |
undef %hiddenurl; |
| undef %encurl; |
undef %encurl; |
| |
undef %deeplinkonly; |
| |
undef %rescount; |
| |
undef %mapcount; |
| $retfrid=''; |
$retfrid=''; |
| |
$errtext=''; |
| my ($untiedhash,$untiedparmhash,$tiedhash,$tiedparmhash); # More state flags. |
my ($untiedhash,$untiedparmhash,$tiedhash,$tiedparmhash); # More state flags. |
| |
|
| # if we got the lock, regenerate course regnerate empty files and tie them. |
# if we got the lock, regenerate course regnerate empty files and tie them. |
|
Line 1095 sub readmap {
|
Line 1350 sub readmap {
|
| # |
# |
| &Apache::lonnet::appenv({"request.course.id" => $short, |
&Apache::lonnet::appenv({"request.course.id" => $short, |
| "request.course.fn" => $fn, |
"request.course.fn" => $fn, |
| "request.course.uri" => $uri}); |
"request.course.uri" => $uri, |
| |
"request.course.tied" => time}); |
| |
|
| $untiedhash = untie(%hash); |
$untiedhash = untie(%hash); |
| $untiedparmhash = untie(%parmhash); |
$untiedparmhash = untie(%parmhash); |
| $gotstate = 1; |
$gotstate = 1; |
|
Line 1138 sub readmap {
|
Line 1395 sub readmap {
|
| $lock=1; |
$lock=1; |
| } |
} |
| undef %randompick; |
undef %randompick; |
| |
undef %randompickseed; |
| |
undef %randomorder; |
| |
undef %randomizationcode; |
| undef %hiddenurl; |
undef %hiddenurl; |
| undef %encurl; |
undef %encurl; |
| |
undef %deeplinkonly; |
| |
undef %rescount; |
| |
undef %mapcount; |
| |
$errtext=''; |
| $retfrid=''; |
$retfrid=''; |
| # |
# |
| # Once more through the routine of tying and loading and so on. |
# Once more through the routine of tying and loading and so on. |
|
Line 1186 sub readmap {
|
Line 1450 sub readmap {
|
| |
|
| # Depends on user must parameterize this as well..or separate as this is: |
# Depends on user must parameterize this as well..or separate as this is: |
| # more part of determining what someone sees on entering a course? |
# more part of determining what someone sees on entering a course? |
| |
# When lonuserstate::readmap() is called from lonroles.pm, i.e., |
| |
# after selecting a role in a course, critical_redirect will be called, |
| |
# unless the course has a blocking event in effect, which suppresses |
| |
# critical message checking (users without evb priv). |
| |
# |
| |
|
| my @what=&Apache::lonnet::dump('critical',$env{'user.domain'}, |
if ($critmsg_check) { |
| $env{'user.name'}); |
my ($redirect,$url) = &Apache::loncommon::critical_redirect(); |
| if ($what[0]) { |
if ($redirect) { |
| if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) { |
$retfurl = $url; |
| $retfurl='/adm/email?critical=display'; |
|
| } |
} |
| } |
} |
| return ($retfurl,$errtext); |
return ($retfurl,$errtext); |
|
Line 1226 sub build_tmp_hashes {
|
Line 1494 sub build_tmp_hashes {
|
| $pc=0; |
$pc=0; |
| &clear_mapalias_count(); |
&clear_mapalias_count(); |
| &processversionfile(%cenv); |
&processversionfile(%cenv); |
| |
|
| |
# URI Of the map file. |
| |
|
| my $furi=&Apache::lonnet::clutter($uri); |
my $furi=&Apache::lonnet::clutter($uri); |
| # |
# |
| # the map staring points. |
# the map staring points. |
|
Line 1234 sub build_tmp_hashes {
|
Line 1505 sub build_tmp_hashes {
|
| $hash{'title_0.0'}=&Apache::lonnet::metadata($uri,'title'); |
$hash{'title_0.0'}=&Apache::lonnet::metadata($uri,'title'); |
| $hash{'ids_'.$furi}='0.0'; |
$hash{'ids_'.$furi}='0.0'; |
| $hash{'is_map_0.0'}=1; |
$hash{'is_map_0.0'}=1; |
| &loadmap($uri,'0.0'); |
|
| |
# Load the map.. note that loadmap may implicitly recurse if the map contains |
| |
# sub-maps. |
| |
|
| |
|
| |
&loadmap($uri,'0.0',$short); |
| |
|
| |
# The code below only executes if there is a starting point for the map> |
| |
# Q/BUG??? If there is no start resource for the map should that be an error? |
| |
# |
| |
|
| if (defined($hash{'map_start_'.$uri})) { |
if (defined($hash{'map_start_'.$uri})) { |
| &Apache::lonnet::appenv({"request.course.id" => $short, |
&Apache::lonnet::appenv({"request.course.id" => $short, |
| "request.course.fn" => $fn, |
"request.course.fn" => $fn, |
| "request.course.uri" => $uri}); |
"request.course.uri" => $uri, |
| |
"request.course.tied" => time}); |
| $env{'request.course.id'}=$short; |
$env{'request.course.id'}=$short; |
| &traceroute('0',$hash{'map_start_'.$uri},'&'); |
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
| &accinit($uri,$short,$fn); |
&accinit($uri,$short,$fn); |
| &hiddenurls(); |
&hiddenurls(); |
| |
&mapcrumbs(); |
| } |
} |
| $errtext .= &get_mapalias_errors(); |
$errtext .= &get_mapalias_errors(); |
| # ------------------------------------------------------- Put versions into src |
# ------------------------------------------------------- Put versions into src |
|
Line 1260 sub build_tmp_hashes {
|
Line 1543 sub build_tmp_hashes {
|
| # $hash{'src_'.$id}=&Apache::lonenc::encrypted($hash{'src_'.$id}); |
# $hash{'src_'.$id}=&Apache::lonenc::encrypted($hash{'src_'.$id}); |
| $hash{'encrypted_'.$id}=1; |
$hash{'encrypted_'.$id}=1; |
| } |
} |
| |
# ------------------------------------------------------------ Deep-linked URLs |
| |
foreach my $id (keys(%deeplinkonly)) { |
| |
$hash{'deeplinkonly_'.$id}=$deeplinkonly{$id}; |
| |
} |
| # ----------------------------------------------- Close hashes to finally store |
# ----------------------------------------------- Close hashes to finally store |
| # --------------------------------- Routine must pass this point, no early outs |
# --------------------------------- Routine must pass this point, no early outs |
| $hash{'first_rid'}=$retfrid; |
$hash{'first_rid'}=$retfrid; |
|
Line 1274 sub build_tmp_hashes {
|
Line 1561 sub build_tmp_hashes {
|
| # ---------------------------------------------------- Store away initial state |
# ---------------------------------------------------- Store away initial state |
| { |
{ |
| my $cfh; |
my $cfh; |
| if (open($cfh,">$fn.state")) { |
if (open($cfh,">","$fn.state")) { |
| print $cfh join("\n",@cond); |
print $cfh join("\n",@cond); |
| $gotstate = 1; |
$gotstate = 1; |
| } else { |
} else { |
|
Line 1289 sub unlink_tmpfiles {
|
Line 1576 sub unlink_tmpfiles {
|
| my ($fn) = @_; |
my ($fn) = @_; |
| my $file_dir = dirname($fn); |
my $file_dir = dirname($fn); |
| |
|
| if ($fn eq LONCAPA::tempdir()) { |
if ("$file_dir/" eq LONCAPA::tempdir()) { |
| my @files = qw (.db _symb.db .state _parms.db); |
my @files = qw (.db _symb.db .state _parms.db); |
| foreach my $file (@files) { |
foreach my $file (@files) { |
| if (-e $fn.$file) { |
if (-e $fn.$file) { |
|
Line 1311 sub evalstate {
|
Line 1598 sub evalstate {
|
| if (-e $fn) { |
if (-e $fn) { |
| my @conditions=(); |
my @conditions=(); |
| { |
{ |
| open(my $fh,"<$fn"); |
open(my $fh,"<",$fn); |
| @conditions=<$fh>; |
@conditions=<$fh>; |
| close($fh); |
close($fh); |
| } |
} |
|
Line 1366 sub evalstate {
|
Line 1653 sub evalstate {
|
| $count++; |
$count++; |
| } |
} |
| my ($mapid) = split(/\./,$id); |
my ($mapid) = split(/\./,$id); |
| &mt('Resource "[_1]" <br /> in Map "[_2]"', |
&mt('Resource [_1][_2]in Map [_3]', |
| $hash{'title_'.$id}, |
$hash{'title_'.$id},'<br />', |
| $hash{'title_'.$hash{'ids_'.$hash{'map_id_'.$mapid}}}); |
$hash{'title_'.$hash{'ids_'.$hash{'map_id_'.$mapid}}}); |
| } (@{ $mapalias_cache{$mapalias} })); |
} (@{ $mapalias_cache{$mapalias} })); |
| next if ($count < 2); |
next if ($count < 2); |
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