--- loncom/publisher/loncfile.pm 2001/06/23 18:51:32 1.2 +++ loncom/publisher/loncfile.pm 2009/04/04 21:45:57 1.95 @@ -1,216 +1,1417 @@ # The LearningOnline Network with CAPA # Handler to rename files, etc, in construction space # -# (Handler to retrieve an old version of a file +# This file responds to the various buttons and events +# in the top frame of the construction space directory. +# Each event is processed in two phases. The first phase +# presents a page that describes the proposed action to the user +# and requests confirmation. The second phase commits the action +# and displays a page showing the results of the action. # -# (Publication Handler -# -# (TeX Content Handler # -# 05/29/00,05/30,10/11 Gerd Kortemeyer) +# $Id: loncfile.pm,v 1.95 2009/04/04 21:45:57 bisitz Exp $ # -# 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer -# 03/23 Guy Albertelli -# 03/24,03/29 Gerd Kortemeyer) +# Copyright Michigan State University Board of Trustees # -# 03/31,04/03,05/02,05/09,06/23 Gerd Kortemeyer) +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). # -# 06/23 Gerd Kortemeyer +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# +=pod + +=head1 NAME + +Apache::loncfile - Construction space file management. + +=head1 SYNOPSIS + + Content handler for buttons on the top frame of the construction space +directory. + +=head1 INTRODUCTION + + loncfile is invoked when buttons in the top frame of the construction +space directory listing are clicked. All operations proceed in two phases. +The first phase describes to the user exactly what will be done. If the user +confirms the operation, the second phase commits the operation and indicates +completion. When the user dismisses the output of phase2, they are returned to +an "appropriate" directory listing in general. + + This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + +=head2 Subroutines + +=cut package Apache::loncfile; use strict; use Apache::File; +use File::Basename; use File::Copy; +use HTML::Entities(); use Apache::Constants qw(:common :http :methods); use Apache::loncacc; +use Apache::lonnet; +use Apache::loncommon(); +use Apache::lonlocal; +use LONCAPA qw(:DEFAULT :match); + + +my $DEBUG=0; +my $r; # Needs to be global for some stuff RF. + +=pod + +=item Debug($request, $message) + + If debugging is enabled puts out a debugging message determined by the + caller. The debug message goes to the Apache error log file. Debugging + is enabled by setting the module global DEBUG variable to nonzero (TRUE). + + Parameters: + +=over 4 + +=item $request - The current request operation. + +=item $message - The message to put in the log file. + +=back + + Returns: + nothing. + +=cut + +sub Debug { + # Put out the indicated message butonly if DEBUG is true. + if ($DEBUG) { + my ($r,$message) = @_; + $r->log_reason($message); + } +} + +sub done { + my ($url)=@_; + my $done=&mt("Done"); + return(<$done + +ENDDONE +} + +=pod + +=item URLToPath($url) + + Convert a URL to a file system path. + + In order to manipulate the construction space objects, it is necessary + to access url identified objects a filespace objects. This function + translates a construction space URL to a file system path. + Parameters: + +=over 4 + +=item Url - string [in] The url to convert. + +=back + + Returns: + +=over 4 + +=item The corresponding file system path. + +=back + +Global References + +=over 4 + +=item $r - Request object [in] Referenced in the &Debug calls. + +=back + +=cut + +sub URLToPath { + my $Url = shift; + &Debug($r, "UrlToPath got: $Url"); + $Url=~ s/\/+/\//g; + $Url=~ s/^https?\:\/\/[^\/]+//; + $Url=~ s/^\///; + $Url=~ s/(\~|priv\/)($match_username)\//\/home\/$2\/public_html\//; + &Debug($r, "Returning $Url \n"); + return $Url; +} + +sub url { + my $fn=shift; + $fn=~s/^\/home\/($match_username)\/public\_html/\/priv\/$1/; + $fn=&HTML::Entities::encode($fn,'<>"&'); + return $fn; +} + +sub display { + my $fn=shift; + $fn=~s-^/home/($match_username)/public_html-/priv/$1-; + return ''.$fn.''; +} + + +# see if the file is +# a) published (return 0 if not) +# b) if, so obsolete (return 0 if not) + +sub obsolete_unpub { + my ($user,$domain,$construct)=@_; + my $published=$construct; + $published=~ + s/^\/home\/$user\/public\_html\//\/home\/httpd\/html\/res\/$domain\/$user\//; + if (-e $published) { + if (&Apache::lonnet::metadata($published,'obsolete')) { + return 1; + } + return 0; + } else { + return 1; + } +} + +# see if directory is empty +# ignores any .meta, .save, .bak, and .log files created for a previously +# published file, which has since been marked obsolete and deleted. +sub empty_directory { + my ($dirname,$phase) = @_; + if (opendir DIR, $dirname) { + my @files = grep(!/^\.\.?$/, readdir(DIR)); # ignore . and .. + if (@files) { + my @orphans = grep(/\.(meta|save|log|bak)$/,@files); + if (scalar(@files) - scalar(@orphans) > 0) { + return 0; + } else { + if (($phase eq 'Delete2') && (@orphans > 0)) { + foreach my $file (@orphans) { + if ($file =~ /\.(meta|save|log|bak)$/) { + unlink($dirname.$file); + } + } + } + } + } + closedir(DIR); + return 1; + } + return 0; +} + +=pod + +=item exists($user, $domain, $file) + + Determine if a resource file name has been published or exists + in the construction space. + + Parameters: + +=over 4 + +=item $user - string [in] - Name of the user for which to check. + +=item $domain - string [in] - Name of the domain in which the resource + might have been published. + +=item $file - string [in] - Name of the file. + +=item $creating - string [in] - optional, type of object being created, + either 'directory' or 'file'. Defaults to + 'file' if unspecified. + +=back + +Returns: + +=over 4 + +=item string - Either undef, 'warning' or 'error' depending on the + type of problem + +=item string - Either where the resource exists as an html string that can + be embedded in a dialog or an empty string if the resource + does not exist. + +=back + +=cut + +sub exists { + my ($user, $domain, $construct, $creating) = @_; + $creating ||= 'file'; + + my $published=$construct; + $published=~ + s{^/home/$user/public_html/}{/home/httpd/html/res/$domain/$user/}; + my ($type,$result); + if ( -d $construct ) { + return ('error','

'.&mt('Error: destination for operation is an existing directory.').'

'); + + } + + if ( -e $published) { + if ( -e $construct ) { + $type = 'warning'; + $result.='

'.&mt('Warning: target file exists, and has been published!').'

'; + } else { + my $published_type = (-d $published) ? 'directory' : 'file'; + + if ($published_type eq $creating) { + $type = 'warning'; + $result.='

'.&mt("Warning: a published $published_type of this name exists.").'

'; + } else { + $type = 'error'; + $result.='

'.&mt("Error: a published $published_type of this name exists.").'

'; + } + } + } elsif ( -e $construct) { + $type = 'warning'; + $result.='

'.&mt('Warning: target file exists!').'

'; + } + + return ($type,$result); +} + +=pod + +=item checksuffix($old, $new) + + Determine if a resource filename suffix (the stuff after the .) would change +as a result of this operation. + + Parameters: + +=over 4 + +=item $old = string [in] Previous filename. + +=item $new = string [in] Resultant filename. + +=back + + Returns: + +=over 4 + +=item Empty string if everything worked. + +=item String containing an error message if there was a problem. + +=back + +=cut + +sub checksuffix { + my ($old,$new) = @_; + my $result; + my $oldsuffix; + my $newsuffix; + if ($new=~m:(.*/*)([^/]+)\.(\w+)$:) { $newsuffix=$3; } + if ($old=~m:(.*)/+([^/]+)\.(\w+)$:) { $oldsuffix=$3; } + if (lc($oldsuffix) ne lc($newsuffix)) { + $result.= + '

'.&mt('Warning: change of MIME type!').'

'; + } + return $result; +} + +sub cleanDest { + my ($request,$dest,$subdir,$fn,$uname)=@_; + #remove bad characters + my $foundbad=0; + if ($subdir && $dest =~/\./) { + $foundbad=1; + $dest=~s/\.//g; + } + $dest =~ s/(\s+$|^\s+)//g; + if ($dest=~/[\#\?&%\":]/) { + $foundbad=1; + $dest=~s/[\#\?&%\":]//g; + } + if ($dest=~m|/|) { + my ($newpath)=($dest=~m|(.*)/|); + $newpath=&relativeDest($fn,$newpath,$uname); + if (! -d "$newpath") { + $request->print('

' + .&mt("You have requested to create file in directory [_1] which doesn't exist. The requested directory path has been removed from the requested file name." + ,'"'.&display($newpath).'"') + .'

'); + $dest=~s|.*/||; + } + } + if ($dest =~ /\.(\d+)\.(\w+)$/){ + $request->print('' + .&mt('Bad filename [_1]',''.&display($dest).'') + .'
' + .&mt('[_1](name).(number).(extension)[_2] not allowed.','','') + .'
' + .&mt('Removing the [_1].number.[_2] from requested filename.','','') + .''); + $dest =~ s/\.(\d+)(\.\w+)$/$2/; + } + if ($foundbad) { + $request->print("

".&mt('Invalid characters in requested name have been removed.')."

"); + } + return $dest; +} + +sub relativeDest { + my ($fn,$newfilename,$uname)=@_; + if ($newfilename=~/^\//) { +# absolute, simply add path + $newfilename='/home/'.$uname.'/public_html/'; + } else { + my $dir=$fn; + $dir=~s/\/[^\/]+$//; + $newfilename=$dir.'/'.$newfilename; + } + $newfilename=~s://+:/:g; # remove duplicate / + while ($newfilename=~m:/\.\./:) { + $newfilename=~ s:/[^/]+/\.\./:/:g; #remove dir/.. + } + return $newfilename; +} + +=pod + +=item CloseForm1($request, $user, $file) + + Close of a form on the successful completion of phase 1 processing + +Parameters: + +=over 4 + +=item $request - Apache Request Object [in] - Apache server request object. + +=item $cancelurl - the url to go to on cancel. + +=back + +=cut + +sub CloseForm1 { + my ($request, $fn) = @_; + $request->print('

'); + $request->print('

'); +} + + +=pod + +=item CloseForm2($request, $user, $directory) + + Successfully close off the phase 2 form. + +Parameters: + +=over 4 + +=item $request - Apache Request object [in] - The request that is being + executed. + +=item $user - string [in] - Name of the user that is initiating the + request. + +=item $directory - string [in] - Directory in which the operation is + being done relative to the top level construction space + directory. + +=back + +=cut + +sub CloseForm2 { + my ($request, $user, $fn) = @_; + $request->print(&done(&url($fn))); +} + +=pod + +=item Rename1($request, $filename, $user, $domain, $dir) + + Perform phase 1 processing of the file rename operation. + +Parameters: + +=over 4 + +=item $request - Apache Request Object [in] The request object for the +current request. + +=item $filename - The filename relative to construction space. + +=item $user - Name of the user making the request. + +=item $domain - User login domain. + +=item $dir - Directory specification of the path to the file. + +=back + +Side effects: + +=over 4 + +=item A new form is displayed prompting for confirmation. The newfilename +hidden field of this form is loaded with +new filename relative to the current directory ($dir). + +=back + +=cut + +sub Rename1 { + my ($request, $user, $domain, $fn, $newfilename, $style) = @_; + + if(-e $fn) { + if($newfilename) { + # is dest a dir + if ($style eq 'move') { + if (-d $newfilename) { + if ($fn =~ m|/([^/]*)$|) { $newfilename .= '/'.$1; } + } + } + if ($newfilename =~ m|/[^\.]+$|) { + #no extension add on original extension + if ($fn =~ m|/[^\.]*\.([^\.]+)$|) { + $newfilename.='.'.$1; + } + } + $request->print(&checksuffix($fn, $newfilename)); + #renaming a dir, delete the trailing / + #remove second to last element for current dir + if (-d $fn) { + $newfilename=~/\.(\w+)$/; + if (&Apache::loncommon::fileembstyle($1) eq 'ssi') { + $request->print('
'. + &mt('Cannot change MIME type of a directory'). + ''. + '
'.&mt('Cancel').''); + return; + } + $newfilename=~s/\/[^\/]+\/([^\/]+)$/\/$1/; + } + $newfilename=~s://+:/:g; # remove duplicate / + while ($newfilename=~m:/\.\./:) { + $newfilename=~ s:/[^/]+/\.\./:/:g; #remove dir/.. + } + my ($type, $return)=&exists($user, $domain, $newfilename); + $request->print($return); + if ($type eq 'error') { + $request->print('
'.&mt('Cancel').''); + return; + } + unless (&obsolete_unpub($user,$domain,$fn)) { + $request->print('

'.&mt('Cannot rename or move non-obsolete published file').'

'. + '
'.&mt('Cancel').''); + return; + } + my $action; + if ($style eq 'rename') { + $action=&mt('Rename'); + } else { + $action=&mt('Move'); + } + $request->print('

'.$action.' '.&display($fn). + '


to '.&display($newfilename).'?

'); + &CloseForm1($request, $fn); + } else { + $request->print('

'.&mt('No new filename specified.').'

'); + return; + } + } else { + $request->print('

'.&mt('No such file').': '.&display($fn).'

'); + return; + } + +} + +=pod + +=item Delete1 + + Performs phase 1 processing of the delete operation. In phase one + we just check to be sure the file exists. + +Parameters: + +=over 4 + +=item $request - Apache Request Object [in] request object for the current + request. + +=item $user - string [in] Name of the user initiating the request. + +=item $domain - string [in] Domain the initiating user is logged in as + +=item $filename - string [in] Source filename. + +=back + +=cut + +sub Delete1 { + my ($request, $user, $domain, $fn) = @_; + + if( -e $fn) { + $request->print(''); + if (-d $fn) { + unless (&empty_directory($fn,'Delete1')) { + $request->print('

'.&mt('Only empty directories may be deleted.').'

'. + 'You must delete the contents of the directory first.
'. + '
'.&mt('Cancel').''); + return; + } + } else { + unless (&obsolete_unpub($user,$domain,$fn)) { + $request->print('

'.&mt('Cannot delete non-obsolete published file').'

'. + '
'.&mt('Cancel').''); + return; + } + } + $request->print('

'.&mt('Delete').' '.&display($fn).'?

'); + &CloseForm1($request, $fn); + } else { + $request->print('

'.&mt('No such file').': '.&display($fn).'

'); + } +} + +=pod + +=item Copy1($request, $user, $domain, $filename, $newfilename) + + Performs phase 1 processing of the construction space copy command. + Ensure that the source file exists. Ensure that a destination exists, + also warn if the destination already exists. + +Parameters: + +=over 4 + +=item $request - Apache Request Object [in] request object for the current + request. + +=item $user - string [in] Name of the user initiating the request. + +=item $domain - string [in] Domain the initiating user is logged in as + +=item $fn - string [in] Source filename. + +=item $newfilename-string [in] Destination filename. + +=back + +=cut + +sub Copy1 { + my ($request, $user, $domain, $fn, $newfilename) = @_; + + if(-e $fn) { + # is dest a dir + if (-d $newfilename) { + if ($fn =~ m|/([^/]*)$|) { $newfilename .= '/'.$1; } + } + if ($newfilename =~ m|/[^\.]+$|) { + #no extension add on original extension + if ($fn =~ m|/[^\.]*\.([^\.]+)$|) { $newfilename.='.'.$1; } + } + $newfilename=~s://+:/:g; # remove duplicate / + while ($newfilename=~m:/\.\./:) { + $newfilename=~ s:/[^/]+/\.\./:/:g; #remove dir/.. + } + $request->print(&checksuffix($fn,$newfilename)); + my ($type,$return)=&exists($user, $domain, $newfilename); + $request->print($return); + if ($type eq 'error') { + $request->print('
'.&mt('Cancel').''); + return; + } + $request->print('

'.&mt('Copy').' '.&display($fn).'
to '. + &display($newfilename).'?

'); + &CloseForm1($request, $fn); + } else { + $request->print('

'.&mt('No such file').': '.&display($fn).'

'); + } +} + +=pod + +=item NewDir1 + + Does all phase 1 processing of directory creation: + Ensures that the user provides a new directory name, + and that the directory does not already exist. + +Parameters: + +=over 4 + +=item $request - Apache Request Object [in] - Server request object for the + current url. + +=item $username - Name of the user that is requesting the directory creation. + +=item $domain - Domain user is in + +=item $fn - source file. + +=item $newdir - Name of the directory to be created; path relative to the + top level of construction space. +=back + +Side Effects: + +=over 4 + +=item A new form is displayed. Clicking on the confirmation button +causes the newdir operation to transition into phase 2. The hidden field +"newfilename" is set with the construction space path to the new directory. + + +=back + +=cut + + +sub NewDir1 { + my ($request, $username, $domain, $fn, $newfilename, $mode) = @_; + + my ($type, $result)=&exists($username,$domain,$newfilename,'directory'); + $request->print($result); + if ($type eq 'error') { + $request->print(''); + } else { + if ($mode eq 'testbank') { + $request->print(''); + } elsif ($mode eq 'imsimport') { + $request->print(''); + } + $request->print('

'.&mt('Make new directory').' '. + &display($newfilename).'?

'); + &CloseForm1($request, $fn); + } +} + + +sub Decompress1 { + my ($request, $user, $domain, $fn) = @_; + if( -e $fn) { + $request->print(''); + $request->print('

'.&mt('Decompress').' '.&display($fn).'?

'); + &CloseForm1($request, $fn); + } else { + $request->print('

'.&mt('No such file').': '.&display($fn).'

'); + } +} + +=pod + +=item NewFile1 + + Does all phase 1 processing of file creation: + Ensures that the user provides a new filename, adds proper extension + if needed and that the file does not already exist, if it is a html, + problem, page, or sequence, it then creates a form link to hand the + actual creation off to the proper handler. + +Parameters: + +=over 4 + +=item $request - Apache Request Object [in] - Server request object for the + current url. + +=item $username - Name of the user that is requesting the directory creation. + +=item $domain - Name of the domain of the user + +=item $fn - Source file name + +=item $newfilename + - Name of the file to be created; no path information +=back + +Side Effects: + +=over 4 + +=item 2 new forms are displayed. Clicking on the confirmation button +causes the browser to attempt to load the specfied URL, allowing the +proper handler to take care of file creation. There is also a Cancel +button which returns you to the driectory listing you came from + +=back + +=cut + +sub NewFile1 { + my ($request, $user, $domain, $fn, $newfilename) = @_; + + if ($env{'form.action'} =~ /new(.+)file/) { + my $extension=$1; + + ##Informs User (name).(number).(extension) not allowed + if($newfilename =~ /\.(\d+)\.(\w+)$/){ + $r->print(''.$newfilename. + ' - '.&mt('Bad Filename').'
('.&mt('name').').('.&mt('number').').('.&mt('extension').') '. + ' '.&mt('Not Allowed').''); + return; + } + if($newfilename =~ /(\:\:\:|\&\&\&|\_\_\_)/){ + $r->print(''.$newfilename. + ' - '.&mt('Bad Filename').'
('.&mt('Must not include').' '.$1.') '. + ' '.&mt('Not Allowed').''); + return; + } + if ($newfilename !~ /\Q.$extension\E$/) { + if ($newfilename =~ m|/[^/.]*\.(?:[^/.]+)$|) { + #already has an extension strip it and add in expected one + $newfilename =~ s|(/[^./])\.(?:[^.]+)$|$1|; + } + $newfilename.=".$extension"; + } + } + my ($type, $result)=&exists($user,$domain,$newfilename); + $request->print($result); + if ($type eq 'error') { + $request->print(''); + } else { + + $request->print('

'.&mt('Make new file').' '.&display($newfilename).'?

'); + $request->print(''); + $request->print('

'); + $request->print('

'); + } +} + +=pod + +=item phaseone($r, $fn, $uname, $udom) + + Peforms phase one processing of the request. In phase one, error messages +are returned if the request cannot be performed (e.g. attempts to manipulate +files that are nonexistent). If the operation can be performed, what is +about to be done will be presented to the user for confirmation. If the +user confirms the request, then phase two is executed, the action +performed and reported to the user. + + Parameters: + +=over 4 + +=item $r - request object [in] - The Apache request being executed. + +=item $fn = string [in] - The filename being manipulated by the + request. + +=item $uname - string [in] Name of user logged in and doing this action. + +=item $udom - string [in] Domain name under which the user logged in. + +=back + +=cut sub phaseone { my ($r,$fn,$uname,$udom)=@_; - my $docroot=$r->dir_config('lonDocRoot'); + + my $doingdir=0; + if ($env{'form.action'} eq 'newdir') { $doingdir=1; } + my $newfilename=&cleanDest($r,$env{'form.newfilename'},$doingdir,$fn,$uname); + $newfilename=&relativeDest($fn,$newfilename,$uname); + $r->print('
'. + ''. + ''. + ''); + + if ($env{'form.action'} eq 'rename') { + &Rename1($r, $uname, $udom, $fn, $newfilename, 'rename'); + } elsif ($env{'form.action'} eq 'move') { + &Rename1($r, $uname, $udom, $fn, $newfilename, 'move'); + } elsif ($env{'form.action'} eq 'delete') { + &Delete1($r, $uname, $udom, $fn); + } elsif ($env{'form.action'} eq 'decompress') { + &Decompress1($r, $uname, $udom, $fn); + } elsif ($env{'form.action'} eq 'copy') { + if($newfilename) { + &Copy1($r, $uname, $udom, $fn, $newfilename); + } else { + $r->print('

'.&mt('No new filename specified.').'

'); + } + } elsif ($env{'form.action'} eq 'newdir') { + my $mode = ''; + if (exists($env{'form.callingmode'}) ) { + $mode = $env{'form.callingmode'}; + } + &NewDir1($r, $uname, $udom, $fn, $newfilename, $mode); + } elsif ($env{'form.action'} eq 'newfile' || + $env{'form.action'} eq 'newhtmlfile' || + $env{'form.action'} eq 'newproblemfile' || + $env{'form.action'} eq 'newpagefile' || + $env{'form.action'} eq 'newsequencefile' || + $env{'form.action'} eq 'newrightsfile' || + $env{'form.action'} eq 'newstyfile' || + $env{'form.action'} eq 'newtaskfile' || + $env{'form.action'} eq 'newlibraryfile' || + $env{'form.action'} eq 'Select Action') { + my $empty=&mt('Type Name Here'); + if (($newfilename!~/\/$/) && ($newfilename!~/$empty$/)) { + &NewFile1($r, $uname, $udom, $fn, $newfilename); + } else { + $r->print('

'.&mt('No new filename specified.').'

'); + } + } +} + +=pod + +=item Rename2($request, $user, $directory, $oldfile, $newfile) + +Performs phase 2 processing of a rename reequest. This is where the +actual rename is performed. + +Parameters - my $urldir='/res/'.$udom.'/'.$uname.$fn; - $urldir=~s/\/[^\/]+$/\//; +=over 4 + +=item $request - Apache request object [in] The request being processed. + +=item $user - string [in] The name of the user initiating the request. + +=item $directory - string [in] The name of the directory relative to the + construction space top level of the renamed file. + +=item $oldfile - Name of the file. + +=item $newfile - Name of the new file. + +=back + +Returns: + +=over 4 + +=item 1 Success. + +=item 0 Failure. + +=cut + +sub Rename2 { + + my ($request, $user, $directory, $oldfile, $newfile) = @_; + + &Debug($request, "Rename2 directory: ".$directory." old file: ".$oldfile. + " new file ".$newfile."\n"); + &Debug($request, "Target is: ".$directory.'/'. + $newfile); + if (-e $oldfile) { + + my $oRN=$oldfile; + my $nRN=$newfile; + unless (rename($oldfile,$newfile)) { + $request->print(''.&mt('Error').': '.$!.''); + return 0; + } + ## If old name.(extension) exits, move under new name. + ## If it doesn't exist and a new.(extension) exists + ## delete it (only concern when renaming over files) + my $tmp1=$oRN.'.meta'; + my $tmp2=$nRN.'.meta'; + if(-e $tmp1){ + unless(rename($tmp1,$tmp2)){ } + } elsif(-e $tmp2){ + unlink $tmp2; + } + $tmp1=$oRN.'.save'; + $tmp2=$nRN.'.save'; + if(-e $tmp1){ + unless(rename($tmp1,$tmp2)){ } + } elsif(-e $tmp2){ + unlink $tmp2; + } + $tmp1=$oRN.'.log'; + $tmp2=$nRN.'.log'; + if(-e $tmp1){ + unless(rename($tmp1,$tmp2)){ } + } elsif(-e $tmp2){ + unlink $tmp2; + } + $tmp1=$oRN.'.bak'; + $tmp2=$nRN.'.bak'; + if(-e $tmp1){ + unless(rename($tmp1,$tmp2)){ } + } elsif(-e $tmp2){ + unlink $tmp2; + } + } else { + $request->print("

".&mt('No such file').": ".&display($oldfile).'

'); + return 0; + } + return 1; +} + +=pod + +=item Delete2($request, $user, $filename) + + Performs phase two of a delete. The user has confirmed that they want +to delete the selected file. The file is deleted and the results of the +delete attempt are indicated. + +Parameters: + +=over 4 + +=item $request - Apache Request object [in] the request object for the current + delete operation. + +=item $user - string [in] The name of the user initiating the delete + request. + +=item $filename - string [in] The name of the file, relative to construction + space, to delete. + +=back + +Returns: + 1 - success. + 0 - Failure. + +=cut + +sub Delete2 { + my ($request, $user, $filename) = @_; + if (-d $filename) { + unless (&empty_directory($filename,'Delete2')) { + $request->print(''.&mt('Error: Directory Non Empty').''); + return 0; + } else { + if(-e $filename) { + unless(rmdir($filename)) { + $request->print(''.&mt('Error').': '.$!.''); + return 0; + } + } else { + $request->print('

'.&mt('No such file').'.

'); + return 0; + } + } + } else { + if(-e $filename) { + unless(unlink($filename)) { + $request->print(''.&mt('Error').': '.$!.''); + return 0; + } + } else { + $request->print('

'.&mt('No such file').'.

'); + return 0; + } + } + return 1; +} - my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn; - my $resdir=$resfn; - $resdir=~s/\/[^\/]+$/\//; - - $fn=~/\/([^\/]+)\.(\w+)$/; - my $main=$1; - my $suffix=$2; - - if (-e $resfn) { - $r->print('
'. - ''. - ''. - ''. - ''. - ''); - my $filename; - opendir(DIR,$resdir); - while ($filename=readdir(DIR)) { - if ($filename=~/^$main\.(\d+)\.$suffix$/) { - my $version=$1; - my ($rdev,$rino,$rmode,$rnlink, - $ruid,$rgid,$rrdev,$rsize, - $ratime,$rmtime,$rctime, - $rblksize,$rblocks)=stat($resdir.'/'.$filename); - $r->print(''); +=pod + +=item Copy2($request, $username, $dir, $oldfile, $newfile) + + Performs phase 2 of a copy. The file is copied and the status + of that copy is reported back to the user. + +=over 4 + +=item $request - Apache request object [in]; the apache request currently + being executed. + +=item $username - string [in] Name of the user who is requesting the copy. + +=item $dir - string [in] Directory path relative to the construction space + of the destination file. + +=item $oldfile - string [in] Name of the source file. + +=item $newfile - string [in] Name of the destination file. + + +=back + +Returns 0 failure, and 1 successs. + +=cut + +sub Copy2 { + my ($request, $username, $dir, $oldfile, $newfile) = @_; + &Debug($request ,"Will try to copy $oldfile to $newfile"); + if(-e $oldfile) { + if ($oldfile eq $newfile) { + $request->print(''.&mt('Warning').': '.&mt('Name of new file is the same as name of old file').' - '.&mt('no action taken').'.'); + return 1; } + unless (copy($oldfile, $newfile)) { + $request->print(''.&mt('copy Error').': '.$!.''); + return 0; + } elsif (!chmod(0660, $newfile)) { + $request->print(''.&mt('chmod error').': '.$!.''); + return 0; + } elsif (-e $oldfile.'.meta' && + !copy($oldfile.'.meta', $newfile.'.meta') && + !chmod(0660, $newfile.'.meta')) { + $request->print(''.&mt('copy metadata error'). + ': '.$!.''); + return 0; + } else { + return 1; + } + } else { + $request->print('

'.&mt('No such file').'

'); + return 0; } - closedir(DIR); - my ($rdev,$rino,$rmode,$rnlink, - $ruid,$rgid,$rrdev,$rsize, - $ratime,$rmtime,$rctime, - $rblksize,$rblocks)=stat($resfn); - $r->print(''. - '
SelectVersionBecame this version on ...Metadata
'.$version.''. - localtime($rmtime).''. - ''. - 'Metadata Version '.$version.''); - if (&Apache::lonnet::fileembstyle($suffix) eq 'ssi') { - $r->print( - '  Diffs with Version '.$version.''); - } - $r->print('
Current'.localtime($rmtime). - ''. - 'Metadata current version'); - if (&Apache::lonnet::fileembstyle($suffix) eq 'ssi') { - $r->print( - '  Diffs with current Version'); - } - $r->print('

'. - 'Retrieval of an old version will '. - 'overwrite the file currently in construction space

'. - '

'); -} else { - $r->print('

No previous versions published.

'); + return 1; } + +=pod + +=item NewDir2($request, $user, $newdirectory) + + Performs phase 2 processing of directory creation. This involves creating the directory and + reporting the results of that creation to the user. + +Parameters: +=over 4 + +=item $request - Apache request object [in]. Object representing the current HTTP request. + +=item $user - string [in] The name of the user that is initiating the request. + +=item $newdirectory - string [in] The full path of the directory being created. + +=back + +Returns 0 - failure 1 - success. + +=cut + +sub NewDir2 { + my ($request, $user, $newdirectory) = @_; + + unless(mkdir($newdirectory, 02770)) { + $request->print(''.&mt('Error').': '.$!.''); + return 0; + } + unless(chmod(02770, ($newdirectory))) { + $request->print(''.&mt('Error').': '.$!.''); + return 0; + } + return 1; +} + +sub decompress2 { + my ($r, $user, $dir, $file) = @_; + &Apache::lonnet::appenv({'cgi.file' => $file}); + &Apache::lonnet::appenv({'cgi.dir' => $dir}); + my $result=&Apache::lonnet::ssi_body('/cgi-bin/decompress.pl'); + $r->print($result); + &Apache::lonnet::delenv('cgi.file'); + &Apache::lonnet::delenv('cgi.dir'); + return 1; } +=pod + +=item phasetwo($r, $fn, $uname, $udom) + + Controls the phase 2 processing of file management + requests for construction space. In phase one, the user + was asked to confirm the operation. In phase 2, the operation + is performed and the result is shown. + + The strategy is to break out the processing into specific action processors + named action2 where action is the requested action and the 2 denotes + phase 2 processing. + +Parameters: + +=over 4 + +=item $r - Apache Request object [in] The request object for this httpd + transaction. + +=item $fn - string [in] A filename indicating the object that is being + manipulated. + +=item $uname - string [in] The name of the user initiating the file management + request. + +=item $udom - string [in] The login domain of the user initiating the + file management request. +=back + +=cut + sub phasetwo { my ($r,$fn,$uname,$udom)=@_; - if ($ENV{'form.version'}) { - my $version=$ENV{'form.version'}; - if ($version eq 'new') { - $r->print('

Retrieving current (most recent) version

'); - } else { - $r->print('

Retrieving old version '.$version.'

'); - } - my $logfile; - my $ctarget='/home/'.$uname.'/public_html'.$fn; - my $vfn=$fn; - if ($version ne 'new') { - $vfn=~s/\.(\w+)$/\.$version\.$1/; - } - my $csource=$r->dir_config('lonDocRoot').'/res/'.$udom.'/'.$uname.$vfn; - unless ($logfile=Apache::File->new('>>'.$ctarget.'.log')) { - $r->print( - 'No write permission to user directory, FAIL'); - } - print $logfile -"\n\n================= Retrieve ".localtime()." ================\n". -"Version: $version\nSource: $csource\nTarget: $ctarget\n"; - $r->print('

Copying file: '); - if (copy($csource,$ctarget)) { - $r->print('ok

'); - print $logfile "Copied sucessfully.\n\n"; - } else { - my $error=$!; - $r->print('fail, '.$error.'

'); - print $logfile "Copy failed: $error\n\n"; - } - $r->print('Back to '.$fn.''); + + &Debug($r, "loncfile - Entering phase 2 for $fn"); + + # Break down the file into its component pieces. + + my $dir; # Directory path + my $main; # Filename. + my $suffix; # Extension. + if ($fn=~m:(.*)/([^/]+):) { + $dir=$1; # Directory path + $main=$2; # Filename. + } + if($main=~m:\.(\w+)$:){ # Fixes problems with filenames with no extensions + $suffix=$1; #This is the actually filename extension if it exists + $main=~s/\.\w+$//; #strip the extension + } + my $dest; # + my $dest_dir; # On success this is where we'll go. + my $disp_newname; # + my $dest_newname; # + &Debug($r,"loncfile::phase2 dir = $dir main = $main suffix = $suffix"); + &Debug($r," newfilename = ".$env{'form.newfilename'}); + + my $conspace=$fn; + + &Debug($r,"loncfile::phase2 Full construction space name: $conspace"); + + &Debug($r,"loncfie::phase2 action is $env{'form.action'}"); + + # Select the appropriate processing sub. + if ($env{'form.action'} eq 'decompress') { + $main .= '.'.$suffix; + if(!&decompress2($r, $uname, $dir, $main)) { + return ; + } + $dest = $dir."/."; + } elsif ($env{'form.action'} eq 'rename' || + $env{'form.action'} eq 'move') { + if($env{'form.newfilename'}) { + if (!defined($dir)) { + $fn=~m:^(.*)/:; + $dir=$1; + } + if(!&Rename2($r, $uname, $dir, $fn, $env{'form.newfilename'})) { + return; + } + $dest = $dir."/"; + $dest_newname = $env{'form.newfilename'}; + $env{'form.newfilename'} =~ /.+(\/.+$)/; + $disp_newname = $1; + $disp_newname =~ s/\///; + } + } elsif ($env{'form.action'} eq 'delete') { + if(!&Delete2($r, $uname, $env{'form.newfilename'})) { + return ; + } + # Once a resource is deleted, we just list the directory that + # previously held it. + # + $dest = $dir."/."; # Parent dir. + } elsif ($env{'form.action'} eq 'copy') { + if($env{'form.newfilename'}) { + if(!&Copy2($r, $uname, $dir, $fn, $env{'form.newfilename'})) { + return ; + } + $dest = $env{'form.newfilename'}; + } else { + $r->print('

'.&mt('No New filename specified').'

'); + return; + } + + } elsif ($env{'form.action'} eq 'newdir') { + my $newdir= $env{'form.newfilename'}; + if(!&NewDir2($r, $uname, $newdir)) { + return; + } + $dest = $newdir."/"; + } + if ( ($env{'form.action'} eq 'newdir') && ($env{'form.phase'} eq 'two') && ( ($env{'form.callingmode'} eq 'testbank') || ($env{'form.callingmode'} eq 'imsimport') ) ) { + $r->print('

'.&mt('Done').'

'); } else { - $r->print( - 'Please pick a version to retrieve

'); - &phaseone($r,$fn,$uname,$udom); + if ($env{'form.action'} eq 'rename') { + $r->print('

'.&mt('Return to Directory').'

'); + $r->print('

'.$disp_newname.'

'); + } else { + $r->print(&done(&url($dest))); + } } } sub handler { - my $r=shift; + $r=shift; + + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['decompress','action','filename','newfilename']); - my $fn; + &Debug($r, "loncfile.pm - handler entered"); + &Debug($r, " filename: ".$env{'form.filename'}); + &Debug($r, " newfilename: ".$env{'form.newfilename'}); +# +# Determine the root filename +# This could come in as "filename", which actually is a URL, or +# as "qualifiedfilename", which is indeed a real filename in filesystem +# + my $fn; + + if ($env{'form.filename'}) { + &Debug($r, "test: $env{'form.filename'}"); + $fn=&unescape($env{'form.filename'}); + $fn=&URLToPath($fn); + } elsif($ENV{'QUERY_STRING'} && $env{'form.phase'} ne 'two') { + #Just hijack the script only the first time around to inject the + #correct information for further processing + $fn=&unescape($env{'form.decompress'}); + $fn=&URLToPath($fn); + $env{'form.action'}="decompress"; + } elsif ($env{'form.qualifiedfilename'}) { + $fn=$env{'form.qualifiedfilename'}; + } else { + &Debug($r, "loncfile::handler - no form.filename"); + $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}. + ' unspecified filename for cfile', $r->filename); + return HTTP_NOT_FOUND; + } - if ($ENV{'form.filename'}) { - $fn=$ENV{'form.filename'}; - $fn=~s/^http\:\/\/[^\/]+//; - } else { - $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}. - ' unspecified filename for cfile', $r->filename); - return HTTP_NOT_FOUND; - } - - unless ($fn) { - $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}. - ' trying to cfile non-existing file', $r->filename); - return HTTP_NOT_FOUND; - } + unless ($fn) { + &Debug($r, "loncfile::handler - doctored url is empty"); + $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}. + ' trying to cfile non-existing file', $r->filename); + return HTTP_NOT_FOUND; + } # ----------------------------------------------------------- Start page output - my $uname; - my $udom; + my $uname; + my $udom; + + ($uname,$udom)= + &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain')); + &Debug($r, + "loncfile::handler constructaccess uname = $uname domain = $udom"); + unless (($uname) && ($udom)) { + $r->log_reason($uname.' at '.$udom. + ' trying to manipulate file '.$env{'form.filename'}. + ' ('.$fn.') - not authorized', + $r->filename); + return HTTP_NOT_ACCEPTABLE; + } + + + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + + my (%loaditem,$js); + + if ( ($env{'form.action'} eq 'newdir') && ($env{'form.phase'} eq 'two') && ( ($env{'form.callingmode'} eq 'testbank') || ($env{'form.callingmode'} eq 'imsimport') ) ) { + my $newdirname = $env{'form.newfilename'}; + $js = qq| + +|; + $loaditem{'onload'} = "writeDone()"; + } + + $r->print(&Apache::loncommon::start_page('Construction Space File Operation', + $js, + {'add_entries' => \%loaditem,})); + + $r->print('

'.&mt('Location').': '.&display($fn).'

'); + + if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) { + $r->print('

' + .&mt('Co-Author [_1]:[_2]',$uname,$udom) + .'

' + ); + } - ($uname,$udom)= - &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain')); - unless (($uname) && ($udom)) { - $r->log_reason($uname.' at '.$udom. - ' trying to publish file '.$ENV{'form.filename'}. - ' ('.$fn.') - not authorized', - $r->filename); - return HTTP_NOT_ACCEPTABLE; - } - - $fn=~s/\/\~(\w+)//; - - $r->content_type('text/html'); - $r->send_http_header; - - $r->print('LON-CAPA Construction Space'); - - $r->print( - ''); - - - $r->print('

Construction Space '.$fn.'

'); - - if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) { - $r->print('

Co-Author: '.$uname.' at '.$udom. - '

'); - } - - if ($ENV{'form.action'} eq 'delete') { - $r->print('

Delete

'); - } elsif ($ENV{'form.action'} eq 'rename') { - $r->print('

Rename

'); - } elsif ($ENV{'form.action'} eq 'newdir') { - $r->print('

New Directory

'); - } elsif ($ENV{'form.action'} eq 'copy') { - $r->print('

Copy

'); - } else { - $r->print('

Unknown Action'); - return OK; - } - if ($ENV{'form.phase'} eq 'two') { -# &phasetwo($r,$fn,$uname,$udom); - } else { -# &phaseone($r,$fn,$uname,$udom); - } - $r->print(''); - return OK; + &Debug($r, "loncfile::handler Form action is $env{'form.action'} "); + if ($env{'form.action'} eq 'delete') { + $r->print('

'.&mt('Delete').'

'); + } elsif ($env{'form.action'} eq 'rename') { + $r->print('

'.&mt('Rename').'

'); + } elsif ($env{'form.action'} eq 'move') { + $r->print('

'.&mt('Move').'

'); + } elsif ($env{'form.action'} eq 'newdir') { + $r->print('

'.&mt('New Directory').'

'); + } elsif ($env{'form.action'} eq 'decompress') { + $r->print('

'.&mt('Decompress').'

'); + } elsif ($env{'form.action'} eq 'copy') { + $r->print('

'.&mt('Copy').'

'); + } elsif ($env{'form.action'} eq 'newfile' || + $env{'form.action'} eq 'newhtmlfile' || + $env{'form.action'} eq 'newproblemfile' || + $env{'form.action'} eq 'newpagefile' || + $env{'form.action'} eq 'newsequencefile' || + $env{'form.action'} eq 'newrightsfile' || + $env{'form.action'} eq 'newstyfile' || + $env{'form.action'} eq 'newtaskfile' || + $env{'form.action'} eq 'newlibraryfile' || + $env{'form.action'} eq 'Select Action' ) { + $r->print('

'.&mt('New Resource').'

'); + } else { + $r->print('

'.&mt('Unknown Action').' '.$env{'form.action'}.'

'. + &Apache::loncommon::end_page()); + return OK; + } + if ($env{'form.phase'} eq 'two') { + &Debug($r, "loncfile::handler entering phase2"); + &phasetwo($r,$fn,$uname,$udom); + } else { + &Debug($r, "loncfile::handler entering phase1"); + &phaseone($r,$fn,$uname,$udom); + } + + $r->print(&Apache::loncommon::end_page()); + return OK; } 1; __END__ +