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Original Path: trunk/webwork-modperl/lib/WeBWorK/ContentGenerator/Instructor/FileManager.pm
| 1 : | sh002i | 2896 | ################################################################################ |
| 2 : | # WeBWorK Online Homework Delivery System | ||
| 3 : | # Copyright © 2000-2003 The WeBWorK Project, http://openwebwork.sf.net/ | ||
| 4 : | dpvc | 3111 | # $CVSHeader: webwork-modperl/lib/WeBWorK/ContentGenerator/Instructor/FileManager.pm,v 1.7 2005/01/08 16:42:10 dpvc Exp $ |
| 5 : | sh002i | 2896 | # |
| 6 : | # This program is free software; you can redistribute it and/or modify it under | ||
| 7 : | # the terms of either: (a) the GNU General Public License as published by the | ||
| 8 : | # Free Software Foundation; either version 2, or (at your option) any later | ||
| 9 : | # version, or (b) the "Artistic License" which comes with this package. | ||
| 10 : | # | ||
| 11 : | # This program is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 : | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | ||
| 13 : | sh002i | 2944 | # FOR A PARTICULAR PURPOSE. See either the GNU General Public License or the |
| 14 : | sh002i | 2896 | # Artistic License for more details. |
| 15 : | ################################################################################ | ||
| 16 : | |||
| 17 : | package WeBWorK::ContentGenerator::Instructor::FileManager; | ||
| 18 : | use base qw(WeBWorK::ContentGenerator::Instructor); | ||
| 19 : | |||
| 20 : | use WeBWorK::Utils qw(readDirectory readFile sortByName); | ||
| 21 : | use WeBWorK::Upload; | ||
| 22 : | use File::Path; | ||
| 23 : | use File::Copy; | ||
| 24 : | |||
| 25 : | =head1 NAME | ||
| 26 : | |||
| 27 : | sh002i | 2944 | WeBWorK::ContentGenerator::Instructor::FileManager.pm -- simple directory manager for WW files |
| 28 : | sh002i | 2896 | |
| 29 : | =cut | ||
| 30 : | |||
| 31 : | use strict; | ||
| 32 : | use warnings; | ||
| 33 : | use CGI; | ||
| 34 : | |||
| 35 : | dpvc | 3111 | # |
| 36 : | # The list of file extensions and the directories they usually go in. | ||
| 37 : | # | ||
| 38 : | my %uploadDir = ( | ||
| 39 : | csv => 'scoring', | ||
| 40 : | lst => 'templates', | ||
| 41 : | pg => 'templates/.*', | ||
| 42 : | pl => 'templates/macros', | ||
| 43 : | def => 'templates', | ||
| 44 : | html => 'html/.*', | ||
| 45 : | ); | ||
| 46 : | |||
| 47 : | sh002i | 2896 | ################################################## |
| 48 : | # | ||
| 49 : | sh002i | 2944 | # Check that the user is authorized, and then |
| 50 : | # see if there is a download to perform. | ||
| 51 : | sh002i | 2896 | # |
| 52 : | sub pre_header_initialize { | ||
| 53 : | sh002i | 2944 | my $self = shift; |
| 54 : | my $r = $self->r; | ||
| 55 : | my $authz = $r->authz; | ||
| 56 : | my $user = $r->param('user'); | ||
| 57 : | sh002i | 2896 | |
| 58 : | sh002i | 2898 | unless ($authz->hasPermissions($user, "access_instructor_tools")) { |
| 59 : | $self->addbadmessage("You aren't authorized to manage course files"); | ||
| 60 : | return; | ||
| 61 : | } | ||
| 62 : | sh002i | 2896 | |
| 63 : | sh002i | 2898 | my $action = $r->param('action'); |
| 64 : | $self->Download if ($action && $action eq 'Download'); | ||
| 65 : | my $file = $r->param('download'); | ||
| 66 : | $self->downloadFile($file) if (defined $file); | ||
| 67 : | sh002i | 2896 | } |
| 68 : | |||
| 69 : | ################################################## | ||
| 70 : | # | ||
| 71 : | sh002i | 2944 | # Download a given file |
| 72 : | sh002i | 2896 | # |
| 73 : | sub downloadFile { | ||
| 74 : | sh002i | 2898 | my $self = shift; |
| 75 : | my $file = checkName(shift); | ||
| 76 : | my $pwd = checkPWD(shift || $self->r->param('pwd') || '.'); | ||
| 77 : | return unless $pwd; | ||
| 78 : | $pwd = $self->{ce}{courseDirs}{root} . '/' . $pwd; | ||
| 79 : | unless (-e "$pwd/$file") { | ||
| 80 : | $self->addbadmessage("The file you are trying to download doesn't exist"); | ||
| 81 : | return; | ||
| 82 : | } | ||
| 83 : | unless (-f "$pwd/$file") { | ||
| 84 : | $self->addbadmessage("You can only download regular files."); | ||
| 85 : | return; | ||
| 86 : | } | ||
| 87 : | my $type = "application/octet-stream"; | ||
| 88 : | $type = "text/plain" if $file =~ m/\.(pg|pl|pm|txt|def|csv|lst)/; | ||
| 89 : | sh002i | 2944 | $type = "image/gif" if $file =~ m/\.gif/; |
| 90 : | sh002i | 2898 | $type = "image/jpeg" if $file =~ m/\.(jpg|jpeg)/; |
| 91 : | sh002i | 2944 | $type = "image/png" if $file =~ m/\.png/; |
| 92 : | sh002i | 2898 | $self->reply_with_file($type, "$pwd/$file", $file, 0); |
| 93 : | sh002i | 2896 | } |
| 94 : | |||
| 95 : | ################################################## | ||
| 96 : | # | ||
| 97 : | sh002i | 2944 | # The main body of the page |
| 98 : | sh002i | 2896 | # |
| 99 : | sub body { | ||
| 100 : | sh002i | 2944 | my $self = shift; |
| 101 : | my $r = $self->r; | ||
| 102 : | my $urlpath = $r->urlpath; | ||
| 103 : | my $db = $r->db; | ||
| 104 : | my $ce = $r->ce; | ||
| 105 : | my $authz = $r->authz; | ||
| 106 : | my $courseRoot = $ce->{courseDirs}{root}; | ||
| 107 : | my $courseName = $urlpath->arg('courseID'); | ||
| 108 : | my $user = $r->param('user'); | ||
| 109 : | my $key = $r->param('key'); | ||
| 110 : | sh002i | 2896 | |
| 111 : | sh002i | 2898 | return CGI::em("You are not authorized to access the instructor tools") |
| 112 : | unless $authz->hasPermissions($user, "access_instructor_tools"); | ||
| 113 : | sh002i | 2896 | |
| 114 : | sh002i | 2898 | $self->{pwd} = checkPWD($r->param('pwd') || '.'); |
| 115 : | return CGI::em("You have specified an illegal working directory!") unless defined $self->{pwd}; | ||
| 116 : | sh002i | 2896 | |
| 117 : | sh002i | 2898 | my $fileManagerPage = $urlpath->newFromModule($urlpath->module, courseID => $courseName); |
| 118 : | sh002i | 2944 | my $fileManagerURL = $self->systemLink($fileManagerPage, authen => 0); |
| 119 : | sh002i | 2896 | |
| 120 : | sh002i | 2898 | print CGI::start_multipart_form( |
| 121 : | -method=>"POST", | ||
| 122 : | -action=>$fileManagerURL, | ||
| 123 : | -id=>"FileManager", | ||
| 124 : | -name=>"FileManager" | ||
| 125 : | ); | ||
| 126 : | print $self->hidden_authen_fields; | ||
| 127 : | sh002i | 2896 | |
| 128 : | sh002i | 2898 | $self->{courseRoot} = $courseRoot; |
| 129 : | $self->{courseName} = $courseName; | ||
| 130 : | sh002i | 2896 | |
| 131 : | sh002i | 2898 | my $action = $r->param('action') || $r->param('formAction') || 'Refresh'; |
| 132 : | sh002i | 2896 | |
| 133 : | sh002i | 2898 | for ($action) { |
| 134 : | sh002i | 2944 | /^Refresh/i and do {$self->Refresh; last}; |
| 135 : | /^Cancel/i and do {$self->Refresh; last}; | ||
| 136 : | /^\^/i and do {$self->ParentDir; last}; | ||
| 137 : | /^Directory/i and do {$self->Go; last}; | ||
| 138 : | /^Go/i and do {$self->Go; last}; | ||
| 139 : | /^View/i and do {$self->View; last}; | ||
| 140 : | /^Edit/i and do {$self->Edit; last}; | ||
| 141 : | /^Download/i and do {$self->Refresh; last}; | ||
| 142 : | /^Copy/i and do {$self->Copy; last}; | ||
| 143 : | /^Rename/i and do {$self->Rename; last}; | ||
| 144 : | /^Delete/i and do {$self->Delete; last}; | ||
| 145 : | /^New Folder/i and do {$self->NewFolder; last}; | ||
| 146 : | /^New File/i and do {$self->NewFile; last}; | ||
| 147 : | /^Upload/i and do {$self->Upload; last}; | ||
| 148 : | /^Revert/i and do {$self->Edit; last}; | ||
| 149 : | /^Save As/i and do {$self->SaveAs; last}; | ||
| 150 : | /^Save/i and do {$self->Save; last}; | ||
| 151 : | sh002i | 2898 | $self->addbadmessage("Unknown action."); |
| 152 : | $self->Refresh; | ||
| 153 : | } | ||
| 154 : | sh002i | 2896 | |
| 155 : | sh002i | 2898 | print CGI::hidden({name=>'pwd',value=>$self->{pwd}}); |
| 156 : | print CGI::hidden({name=>'formAction'}); | ||
| 157 : | print CGI::end_multipart_form(); | ||
| 158 : | sh002i | 2896 | |
| 159 : | sh002i | 2898 | return ""; |
| 160 : | sh002i | 2896 | } |
| 161 : | |||
| 162 : | |||
| 163 : | ################################################## | ||
| 164 : | # | ||
| 165 : | sh002i | 2944 | # Display the directory listing and associated buttons |
| 166 : | sh002i | 2896 | # |
| 167 : | sub Refresh { | ||
| 168 : | sh002i | 2898 | my $self = shift; |
| 169 : | my $pwd = shift || $self->{pwd}; | ||
| 170 : | my $isTop = $pwd eq '.' || $pwd eq ''; | ||
| 171 : | sh002i | 2896 | |
| 172 : | sh002i | 2898 | my ($dirs,$dirlabels) = directoryMenu($self->{courseName},$pwd); |
| 173 : | my ($files,$filelabels) = directoryListing($self->{courseRoot},$pwd); | ||
| 174 : | sh002i | 2896 | |
| 175 : | sh002i | 2898 | unless ($files) { |
| 176 : | $self->addbadmessage("The directory you specified doesn't exist"); | ||
| 177 : | $files = []; $filelabels = {}; | ||
| 178 : | } | ||
| 179 : | sh002i | 2896 | |
| 180 : | sh002i | 2898 | # |
| 181 : | sh002i | 2944 | # Some JavaScript to make things easier for the user |
| 182 : | sh002i | 2898 | # |
| 183 : | print CGI::script(<<EOF); | ||
| 184 : | function doForm(action) { | ||
| 185 : | var form = window.document.getElementById('FileManager'); | ||
| 186 : | form.formAction.value = action; | ||
| 187 : | form.submit(); | ||
| 188 : | } | ||
| 189 : | function disableButton(id,state) { | ||
| 190 : | var element = window.document.getElementById(id); | ||
| 191 : | element.disabled = state; | ||
| 192 : | } | ||
| 193 : | function checkFiles() { | ||
| 194 : | var files = window.document.getElementById('files'); | ||
| 195 : | var state = files.selectedIndex < 0; | ||
| 196 : | disableButton('View',state); | ||
| 197 : | disableButton('Edit',state); | ||
| 198 : | disableButton('Download',state); | ||
| 199 : | disableButton('Rename',state); | ||
| 200 : | disableButton('Copy',state); | ||
| 201 : | disableButton('Delete',state); | ||
| 202 : | } | ||
| 203 : | function checkFile() { | ||
| 204 : | var file = window.document.getElementById('file'); | ||
| 205 : | var state = (file.value == ""); | ||
| 206 : | disableButton('Upload',state); | ||
| 207 : | } | ||
| 208 : | sh002i | 2896 | EOF |
| 209 : | |||
| 210 : | sh002i | 2898 | # |
| 211 : | sh002i | 2944 | # Start the table |
| 212 : | sh002i | 2898 | # |
| 213 : | print CGI::start_table({border=>0,cellpadding=>0,cellspacing=>10, style=>"margin:1em 0 0 3em"}); | ||
| 214 : | sh002i | 2896 | |
| 215 : | sh002i | 2898 | # |
| 216 : | sh002i | 2944 | # Directory menu |
| 217 : | sh002i | 2898 | # |
| 218 : | print CGI::Tr( | ||
| 219 : | CGI::td({colspan=>3}, | ||
| 220 : | sh002i | 2944 | CGI::input({type=>"submit", name=>"action", value => "^", ($isTop? (disabled=>1): ())}), |
| 221 : | CGI::popup_menu( | ||
| 222 : | -name => "directory", | ||
| 223 : | -values => $dirs, | ||
| 224 : | -labels => $dirlabels, | ||
| 225 : | -style => "width:25em", | ||
| 226 : | -onChange => "doForm('Go')" | ||
| 227 : | ), | ||
| 228 : | sh002i | 2898 | CGI::noscript(CGI::input({type=>"submit",name=>"action",value=>"Go"})) |
| 229 : | ) | ||
| 230 : | sh002i | 2944 | ); |
| 231 : | sh002i | 2896 | |
| 232 : | sh002i | 2898 | # |
| 233 : | sh002i | 2944 | # Directory Listing |
| 234 : | sh002i | 2898 | # |
| 235 : | my %button = (type=>"submit",name=>"action",style=>"width:10em"); | ||
| 236 : | print CGI::Tr({valign=>"middle"}, | ||
| 237 : | sh002i | 2944 | CGI::td(CGI::scrolling_list( |
| 238 : | -name => "files", id => "files", | ||
| 239 : | dpvc | 3063 | -style => "font-family:monospace; width:30em", |
| 240 : | sh002i | 2944 | -size => 15, |
| 241 : | -multiple => 1, | ||
| 242 : | -values => $files, | ||
| 243 : | -labels => $filelabels, | ||
| 244 : | -onDblClick => "doForm('View')", | ||
| 245 : | -onChange => "checkFiles()" | ||
| 246 : | )), | ||
| 247 : | sh002i | 2898 | CGI::td({width=>3}), |
| 248 : | CGI::td( | ||
| 249 : | CGI::start_table({border=>0,cellpadding=>0,cellspacing=>3}), | ||
| 250 : | CGI::Tr([ | ||
| 251 : | CGI::td(CGI::input({%button,value=>"View",id=>"View"})), | ||
| 252 : | CGI::td(CGI::input({%button,value=>"Edit",id=>"Edit"})), | ||
| 253 : | CGI::td(CGI::input({%button,value=>"Download",id=>"Download"})), | ||
| 254 : | CGI::td(CGI::input({%button,value=>"Rename",id=>"Rename"})), | ||
| 255 : | CGI::td(CGI::input({%button,value=>"Copy",id=>"Copy"})), | ||
| 256 : | CGI::td(CGI::input({%button,value=>"Delete",id=>"Delete"})), | ||
| 257 : | CGI::td({height=>10}), | ||
| 258 : | CGI::td(CGI::input({%button,value=>"New File"})), | ||
| 259 : | CGI::td(CGI::input({%button,value=>"New Folder"})), | ||
| 260 : | CGI::td(CGI::input({%button,value=>"Refresh"})), | ||
| 261 : | ]), | ||
| 262 : | CGI::end_table(), | ||
| 263 : | ), | ||
| 264 : | sh002i | 2896 | ); |
| 265 : | |||
| 266 : | sh002i | 2898 | # |
| 267 : | sh002i | 2944 | # Upload button |
| 268 : | sh002i | 2898 | # |
| 269 : | print CGI::Tr([ | ||
| 270 : | CGI::td(), | ||
| 271 : | CGI::td({colspan=>3}, | ||
| 272 : | dpvc | 3111 | CGI::input({type=>"submit",name=>"action",style=>"width:7em",value=>"Upload:",id=>"Upload"}), |
| 273 : | CGI::input({type=>"file",name=>"file",id=>"file",size=>40,onChange=>"checkFile()"}), | ||
| 274 : | CGI::br(), | ||
| 275 : | CGI::small(join(' ',"Format:", | ||
| 276 : | CGI::radio_group('format',['Text','Binary','Automatic'],'Automatic'))), | ||
| 277 : | ), | ||
| 278 : | sh002i | 2896 | ]); |
| 279 : | |||
| 280 : | sh002i | 2898 | # |
| 281 : | sh002i | 2944 | # End the table |
| 282 : | # | ||
| 283 : | sh002i | 2898 | print CGI::end_table(); |
| 284 : | print CGI::script("checkFiles(); checkFile();"); | ||
| 285 : | sh002i | 2896 | } |
| 286 : | |||
| 287 : | ################################################## | ||
| 288 : | # | ||
| 289 : | sh002i | 2944 | # Move to the parent directory |
| 290 : | sh002i | 2896 | # |
| 291 : | sub ParentDir { | ||
| 292 : | sh002i | 2898 | my $self = shift; |
| 293 : | $self->{pwd} = '.' unless ($self->{pwd} =~ s!/[^/]*$!!); | ||
| 294 : | $self->Refresh; | ||
| 295 : | sh002i | 2896 | } |
| 296 : | |||
| 297 : | ################################################## | ||
| 298 : | # | ||
| 299 : | sh002i | 2944 | # Move to the parent directory |
| 300 : | sh002i | 2896 | # |
| 301 : | sub Go { | ||
| 302 : | sh002i | 2898 | my $self = shift; |
| 303 : | $self->{pwd} = $self->r->param('directory'); | ||
| 304 : | $self->Refresh; | ||
| 305 : | sh002i | 2896 | } |
| 306 : | |||
| 307 : | ################################################## | ||
| 308 : | # | ||
| 309 : | sh002i | 2944 | # Open a directory or view a file |
| 310 : | sh002i | 2896 | # |
| 311 : | sub View { | ||
| 312 : | sh002i | 2898 | my $self = shift; my $pwd = $self->{pwd}; |
| 313 : | my $filename = $self->getFile("view"); return unless $filename; | ||
| 314 : | my $name = "$pwd/$filename"; $name =~ s!^\./?!!; | ||
| 315 : | sh002i | 2896 | |
| 316 : | sh002i | 2898 | # |
| 317 : | sh002i | 2944 | # Handle directories by making them the working directory |
| 318 : | sh002i | 2898 | # |
| 319 : | my $file = "$self->{courseRoot}/$pwd/$filename"; | ||
| 320 : | if (-d $file) { | ||
| 321 : | $self->{pwd} .= '/'.$filename; | ||
| 322 : | $self->Refresh; return; | ||
| 323 : | } | ||
| 324 : | sh002i | 2896 | |
| 325 : | sh002i | 2898 | unless (-f $file) { |
| 326 : | $self->addbadmessage("You can't view files of that type"); | ||
| 327 : | $self->Refresh; return; | ||
| 328 : | } | ||
| 329 : | sh002i | 2896 | |
| 330 : | sh002i | 2898 | # |
| 331 : | sh002i | 2944 | # Include a download link |
| 332 : | sh002i | 2898 | # |
| 333 : | my $urlpath = $self->r->urlpath; | ||
| 334 : | my $fileManagerPage = $urlpath->newFromModule($urlpath->module, courseID => $self->{courseName}); | ||
| 335 : | sh002i | 2944 | my $fileManagerURL = $self->systemLink($fileManagerPage, params => {download => $filename, pwd => $pwd}); |
| 336 : | sh002i | 2898 | print CGI::div({style=>"float:right"}, |
| 337 : | sh002i | 2896 | CGI::a({href=>$fileManagerURL},"Download")); |
| 338 : | sh002i | 2898 | print CGI::p(),CGI::b($name),CGI::p(); |
| 339 : | print CGI::hr(); | ||
| 340 : | sh002i | 2896 | |
| 341 : | sh002i | 2898 | # |
| 342 : | sh002i | 2944 | # For files, display the file, if possible. |
| 343 : | # If the file is an image, display it as an image. | ||
| 344 : | sh002i | 2898 | # |
| 345 : | my $data = readFile($file); | ||
| 346 : | if (isText($data)) { | ||
| 347 : | print CGI::pre(showHTML($data)); | ||
| 348 : | } elsif ($file =~ m/\.(gif|jpg|png)/i) { | ||
| 349 : | print CGI::img({src=>$fileManagerURL, border=>0}); | ||
| 350 : | } else { | ||
| 351 : | print CGI::div({class=>"ResultsWithError"}, | ||
| 352 : | "The file does not appear to be a text file."); | ||
| 353 : | } | ||
| 354 : | sh002i | 2896 | } |
| 355 : | |||
| 356 : | ################################################## | ||
| 357 : | # | ||
| 358 : | sh002i | 2944 | # Edit a file |
| 359 : | sh002i | 2896 | # |
| 360 : | sub Edit { | ||
| 361 : | sh002i | 2898 | my $self = shift; |
| 362 : | my $filename = $self->getFile('edit'); return unless $filename; | ||
| 363 : | my $file = "$self->{courseRoot}/$self->{pwd}/$filename"; | ||
| 364 : | sh002i | 2896 | |
| 365 : | sh002i | 2898 | if (-d $file) { |
| 366 : | $self->addbadmessage("You can't edit a directory"); | ||
| 367 : | $self->Refresh; return; | ||
| 368 : | } | ||
| 369 : | unless (-f $file) { | ||
| 370 : | $self->addbadmessage("You can only edit text files"); | ||
| 371 : | $self->Refresh; return; | ||
| 372 : | } | ||
| 373 : | my $data = readFile($file); | ||
| 374 : | if (!isText($data)) { | ||
| 375 : | $self->addbadmessage("The file does not appear to be a text file"); | ||
| 376 : | $self->Refresh; return; | ||
| 377 : | } | ||
| 378 : | sh002i | 2896 | |
| 379 : | sh002i | 2898 | $self->RefreshEdit($data,$filename); |
| 380 : | sh002i | 2896 | } |
| 381 : | |||
| 382 : | ################################################## | ||
| 383 : | # | ||
| 384 : | sh002i | 2944 | # Save the edited file |
| 385 : | sh002i | 2896 | # |
| 386 : | sub Save { | ||
| 387 : | sh002i | 2898 | my $self = shift; my $filename = shift; |
| 388 : | my $pwd = $self->{pwd}; | ||
| 389 : | if ($filename) { | ||
| 390 : | $pwd = substr($filename,length($self->{courseRoot})+1); | ||
| 391 : | dpvc | 3086 | $pwd =~ s!(/|^)([^/]*)$!!; $filename = $2; |
| 392 : | $pwd = '.' if $pwd eq ''; | ||
| 393 : | sh002i | 2898 | } else { |
| 394 : | $filename = $self->getFile("save"); return unless $filename; | ||
| 395 : | } | ||
| 396 : | my $file = "$self->{courseRoot}/$pwd/$filename"; | ||
| 397 : | my $data = $self->r->param("data"); | ||
| 398 : | sh002i | 2896 | |
| 399 : | sh002i | 2898 | if (defined($data)) { |
| 400 : | if (open(OUTFILE,">$file")) { | ||
| 401 : | eval {print OUTFILE $data; close(OUTFILE)}; | ||
| 402 : | sh002i | 2944 | if ($@) {$self->addbadmessage("Failed to save: $@")} |
| 403 : | dpvc | 3111 | else {$self->addgoodmessage("File saved")} |
| 404 : | sh002i | 2944 | } else {$self->addbadmessage("Can't write to file: $!")} |
| 405 : | sh002i | 2898 | } else {$data = ""; $self->addbadmessage("Error: no file data was submitted!")} |
| 406 : | sh002i | 2896 | |
| 407 : | sh002i | 2898 | $self->{pwd} = $pwd; |
| 408 : | $self->RefreshEdit($data,$filename); | ||
| 409 : | sh002i | 2896 | } |
| 410 : | |||
| 411 : | ################################################## | ||
| 412 : | # | ||
| 413 : | sh002i | 2944 | # Save the edited file under a new name |
| 414 : | sh002i | 2896 | # |
| 415 : | sub SaveAs { | ||
| 416 : | sh002i | 2898 | my $self = shift; |
| 417 : | sh002i | 2896 | |
| 418 : | sh002i | 2898 | my $newfile = $self->r->param('name'); |
| 419 : | my $original = $self->r->param('files'); | ||
| 420 : | $newfile = $self->verifyPath($newfile,$original); | ||
| 421 : | if ($newfile) {$self->Save($newfile); return} | ||
| 422 : | $self->RefreshEdit($self->r->param('data'),$original); | ||
| 423 : | sh002i | 2896 | } |
| 424 : | |||
| 425 : | ################################################## | ||
| 426 : | # | ||
| 427 : | sh002i | 2944 | # Display the Edit page |
| 428 : | sh002i | 2896 | # |
| 429 : | sub RefreshEdit { | ||
| 430 : | sh002i | 2898 | my $self = shift; my $data = shift; my $file = shift; |
| 431 : | my $pwd = shift || $self->{pwd}; | ||
| 432 : | my $name = "$pwd/$file"; $name =~ s!^\./?!!; | ||
| 433 : | sh002i | 2896 | |
| 434 : | sh002i | 2898 | my %button = (type=>"submit",name=>"action",style=>"width:6em"); |
| 435 : | print CGI::p(); | ||
| 436 : | print CGI::start_table({border=>0,cellspacing=>0,cellpadding=>2, width=>"95%", align=>"center"}); | ||
| 437 : | print CGI::Tr([ | ||
| 438 : | CGI::td({align=>"center",style=>"background-color:#CCCCCC"},CGI::b($name)), | ||
| 439 : | CGI::td(CGI::textarea(-name=>"data",-default=>$data,-override=>1,-rows=>30,-columns=>80, | ||
| 440 : | sh002i | 2896 | -style=>"width:100%")), ## can't seem to get variable height to work |
| 441 : | sh002i | 2898 | CGI::td({align=>"center", nowrap=>1}, |
| 442 : | CGI::input({%button,value=>"Cancel"})," ", | ||
| 443 : | CGI::input({%button,value=>"Revert"})," ", | ||
| 444 : | CGI::input({%button,value=>"Save As:"}), | ||
| 445 : | CGI::input({type=>"text",name=>"name",size=>20,style=>"width:50%"})," ", | ||
| 446 : | CGI::input({%button,value=>"Save"}), | ||
| 447 : | ), | ||
| 448 : | sh002i | 2896 | ]); |
| 449 : | sh002i | 2898 | print CGI::end_table(); |
| 450 : | print CGI::hidden({name=>"files",value=>$file}); | ||
| 451 : | sh002i | 2896 | } |
| 452 : | |||
| 453 : | ################################################## | ||
| 454 : | # | ||
| 455 : | sh002i | 2944 | # Copy a file |
| 456 : | sh002i | 2896 | # |
| 457 : | sub Copy { | ||
| 458 : | sh002i | 2898 | my $self = shift; |
| 459 : | my $oldfile = $self->getFile('copy'); return unless $oldfile; | ||
| 460 : | my $original = $oldfile; | ||
| 461 : | $oldfile = "$self->{courseRoot}/$self->{pwd}/$oldfile"; | ||
| 462 : | sh002i | 2896 | |
| 463 : | sh002i | 2898 | if (-d $oldfile) { |
| 464 : | sh002i | 2944 | # FIXME: need to do recursive directory copy |
| 465 : | sh002i | 2898 | $self->addbadmessage("Directory copies are not yet implemented"); |
| 466 : | $self->Refresh; | ||
| 467 : | return; | ||
| 468 : | } | ||
| 469 : | sh002i | 2896 | |
| 470 : | sh002i | 2898 | if ($self->r->param('confirmed')) { |
| 471 : | my $newfile = $self->r->param('name'); | ||
| 472 : | if ($newfile = $self->verifyPath($newfile,$original)) { | ||
| 473 : | if (copy($oldfile, $newfile)) { | ||
| 474 : | dpvc | 3111 | $self->addgoodmessage("File successfully copied"); |
| 475 : | $self->Refresh; return; | ||
| 476 : | sh002i | 2898 | } else {$self->addbadmessage("Can't copy file: $!")} |
| 477 : | } | ||
| 478 : | } | ||
| 479 : | sh002i | 2896 | |
| 480 : | sh002i | 2898 | Confirm("Copy file as:","Copy"); |
| 481 : | print CGI::hidden({name=>"files",value=>$original}); | ||
| 482 : | sh002i | 2896 | } |
| 483 : | |||
| 484 : | ################################################## | ||
| 485 : | # | ||
| 486 : | sh002i | 2944 | # Rename a file |
| 487 : | sh002i | 2896 | # |
| 488 : | sub Rename { | ||
| 489 : | sh002i | 2898 | my $self = shift; |
| 490 : | my $oldfile = $self->getFile('rename'); return unless $oldfile; | ||
| 491 : | my $original = $oldfile; | ||
| 492 : | $oldfile = "$self->{courseRoot}/$self->{pwd}/$oldfile"; | ||
| 493 : | sh002i | 2896 | |
| 494 : | sh002i | 2898 | if ($self->r->param('confirmed')) { |
| 495 : | my $newfile = $self->r->param('name'); | ||
| 496 : | if ($newfile = $self->verifyPath($newfile,$original)) { | ||
| 497 : | if (rename $oldfile, $newfile) { | ||
| 498 : | sh002i | 2896 | $self->addgoodmessage("File successfully renamed"); |
| 499 : | $self->Refresh; return; | ||
| 500 : | sh002i | 2898 | } else {$self->addbadmessage("Can't rename file: $!")} |
| 501 : | } | ||
| 502 : | } | ||
| 503 : | sh002i | 2896 | |
| 504 : | sh002i | 2898 | Confirm("Rename file as:","Rename"); |
| 505 : | print CGI::hidden({name=>"files",value=>$original}); | ||
| 506 : | sh002i | 2896 | } |
| 507 : | |||
| 508 : | ################################################## | ||
| 509 : | # | ||
| 510 : | sh002i | 2944 | # Delete a file |
| 511 : | sh002i | 2896 | # |
| 512 : | sub Delete { | ||
| 513 : | sh002i | 2898 | my $self = shift; |
| 514 : | my @files = $self->r->param('files'); | ||
| 515 : | if (scalar(@files) == 0) { | ||
| 516 : | $self->addbadmessage("You must select at least one file to delete"); | ||
| 517 : | $self->Refresh; return; | ||
| 518 : | } | ||
| 519 : | sh002i | 2896 | |
| 520 : | sh002i | 2898 | my $pwd = $self->{pwd}; |
| 521 : | my $dir = $self->{courseRoot}.'/'.$pwd; | ||
| 522 : | if ($self->r->param('confirmed')) { | ||
| 523 : | sh002i | 2896 | |
| 524 : | sh002i | 2898 | # |
| 525 : | sh002i | 2944 | # If confirmed, go ahead and delete the files |
| 526 : | sh002i | 2898 | # |
| 527 : | foreach my $file (@files) { | ||
| 528 : | if (defined checkPWD("$pwd/$file",1)) { | ||
| 529 : | dpvc | 3111 | if (-d "$dir/$file") { |
| 530 : | my $removed = eval {rmtree("$dir/$file",0,1)}; | ||
| 531 : | if ($removed) {$self->addgoodmessage("Directory '$file' removed (items deleted: $removed)")} | ||
| 532 : | else {$self->addbadmessage("Directory '$file' not removed: $!")} | ||
| 533 : | } else { | ||
| 534 : | if (unlink("$dir/$file")) {$self->addgoodmessage("File '$file' successfully removed")} | ||
| 535 : | else {$self->addbadmessage("File '$file' not removed: $!")} | ||
| 536 : | } | ||
| 537 : | sh002i | 2898 | } else {$self->addbadmessage("Illegal file '$file' specified"); last} |
| 538 : | } | ||
| 539 : | $self->Refresh; | ||
| 540 : | sh002i | 2896 | |
| 541 : | sh002i | 2898 | } else { |
| 542 : | sh002i | 2896 | |
| 543 : | sh002i | 2898 | # |
| 544 : | sh002i | 2944 | # Put up the confirmation dialog box |
| 545 : | sh002i | 2898 | # |
| 546 : | print CGI::start_table({border=>1,cellspacing=>2,cellpadding=>20, style=>"margin: 1em 0 0 5em"}); | ||
| 547 : | print CGI::Tr( | ||
| 548 : | CGI::td( | ||
| 549 : | dpvc | 3111 | CGI::b("Warning:")," You have requested that the following items be deleted\n", |
| 550 : | CGI::ul(CGI::li(\@files)), | ||
| 551 : | ((grep { -d "$dir/$_" } @files)? | ||
| 552 : | CGI::p({style=>"width:500"},"Some of these files are directories. ", | ||
| 553 : | "Only delete directories if you really know what you are doing. ", | ||
| 554 : | "You can seriously damage your course if you delete the wrong thing."): ""), | ||
| 555 : | CGI::p({style=>"color:red"},"There is no undo for deleting files or directories!"), | ||
| 556 : | CGI::p("Really delete the items listed above?"), | ||
| 557 : | CGI::div({style=>"float:left; padding-left:3ex"}, | ||
| 558 : | CGI::input({type=>"submit",name=>"action",value=>"Cancel"})), | ||
| 559 : | CGI::div({style=>"float:right; padding-right:3ex"}, | ||
| 560 : | CGI::input({type=>"submit",name=>"action",value=>"Delete"})), | ||
| 561 : | sh002i | 2898 | ), |
| 562 : | ); | ||
| 563 : | print CGI::end_table(); | ||
| 564 : | sh002i | 2896 | |
| 565 : | sh002i | 2898 | print CGI::hidden({name=>"confirmed",value=>1}); |
| 566 : | foreach my $file (@files) {print CGI::hidden({name=>"files",value=>$file})} | ||
| 567 : | } | ||
| 568 : | sh002i | 2896 | } |
| 569 : | |||
| 570 : | ################################################## | ||
| 571 : | # | ||
| 572 : | sh002i | 2944 | # Make a new file and edit it |
| 573 : | sh002i | 2896 | # |
| 574 : | sub NewFile { | ||
| 575 : | sh002i | 2898 | my $self = shift; |
| 576 : | sh002i | 2896 | |
| 577 : | sh002i | 2898 | if ($self->r->param('confirmed')) { |
| 578 : | my $name = $self->r->param('name'); | ||
| 579 : | if (my $file = $self->verifyName($name,"file")) { | ||
| 580 : | if (open(NEWFILE,">$file")) { | ||
| 581 : | dpvc | 3111 | close(NEWFILE); |
| 582 : | $self->RefreshEdit("",$name); | ||
| 583 : | return; | ||
| 584 : | sh002i | 2898 | } else {$self->addbadmessage("Can't create file: $!")} |
| 585 : | } | ||
| 586 : | } | ||
| 587 : | sh002i | 2896 | |
| 588 : | sh002i | 2898 | Confirm("New file name:","New File"); |
| 589 : | sh002i | 2896 | } |
| 590 : | |||
| 591 : | ################################################## | ||
| 592 : | # | ||
| 593 : | sh002i | 2944 | # Make a new directory |
| 594 : | sh002i | 2896 | # |
| 595 : | sub NewFolder { | ||
| 596 : | sh002i | 2898 | my $self = shift; |
| 597 : | sh002i | 2896 | |
| 598 : | sh002i | 2898 | if ($self->r->param('confirmed')) { |
| 599 : | my $name = $self->r->param('name'); | ||
| 600 : | if (my $dir = $self->verifyName($name,"directory")) { | ||
| 601 : | if (mkdir $dir, 0750) { | ||
| 602 : | dpvc | 3111 | $self->{pwd} .= '/'.$name; |
| 603 : | $self->Refresh; return; | ||
| 604 : | sh002i | 2898 | } else {$self->addbadmessage("Can't create directory: $!")} |
| 605 : | } | ||
| 606 : | } | ||
| 607 : | sh002i | 2896 | |
| 608 : | sh002i | 2898 | Confirm("New folder name:","New Folder"); |
| 609 : | sh002i | 2896 | } |
| 610 : | |||
| 611 : | ################################################## | ||
| 612 : | # | ||
| 613 : | sh002i | 2944 | # Download a file |
| 614 : | sh002i | 2896 | # |
| 615 : | sub Download { | ||
| 616 : | sh002i | 2898 | my $self = shift; |
| 617 : | my $filename = $self->getFile("download"); return unless $filename; | ||
| 618 : | my $pwd = checkPWD($self->r->param('pwd') || '.'); | ||
| 619 : | return unless $pwd; | ||
| 620 : | my $file = $self->{ce}{courseDirs}{root}.'/'.$pwd.'/'.$filename; | ||
| 621 : | sh002i | 2896 | |
| 622 : | sh002i | 2898 | if (-d $file) {$self->addbadmessage("You can't download directories"); return} |
| 623 : | unless (-f $file) {$self->addbadmessage("You can't download files of that type"); return} | ||
| 624 : | sh002i | 2896 | |
| 625 : | sh002i | 2898 | $self->r->param('download',$filename); |
| 626 : | sh002i | 2896 | } |
| 627 : | |||
| 628 : | ################################################## | ||
| 629 : | # | ||
| 630 : | sh002i | 2944 | # Upload a file to the server |
| 631 : | sh002i | 2896 | # |
| 632 : | sub Upload { | ||
| 633 : | sh002i | 2898 | my $self = shift; |
| 634 : | my $dir = "$self->{courseRoot}/$self->{pwd}"; | ||
| 635 : | my $fileIDhash = $self->r->param('file'); | ||
| 636 : | unless ($fileIDhash) { | ||
| 637 : | $self->addbadmessage("You have not chosen a file to upload."); | ||
| 638 : | $self->Refresh; | ||
| 639 : | return; | ||
| 640 : | } | ||
| 641 : | sh002i | 2896 | |
| 642 : | sh002i | 2898 | my ($id,$hash) = split(/\s+/,$fileIDhash); |
| 643 : | my $upload = WeBWorK::Upload->retrieve($id,$hash,dir=>$self->{ce}{webworkDirs}{uploadCache}); | ||
| 644 : | sh002i | 2896 | |
| 645 : | sh002i | 2898 | my $name = uniqueName($dir,checkName($upload->filename)); |
| 646 : | if (-e "$dir/$name") { | ||
| 647 : | $self->addbadmessage("A file with that name already exists"); | ||
| 648 : | $self->Refresh; | ||
| 649 : | $upload->dispose; | ||
| 650 : | return; | ||
| 651 : | } | ||
| 652 : | dpvc | 3111 | $self->checkFileLocation($name,$self->{pwd}); |
| 653 : | sh002i | 2896 | |
| 654 : | dpvc | 3111 | my $type = $self->r->param('format') || 'automatic'; |
| 655 : | my $data; | ||
| 656 : | |||
| 657 : | # | ||
| 658 : | # Check if we need to convert linebreaks | ||
| 659 : | # | ||
| 660 : | if ($type ne 'Binary') { | ||
| 661 : | my $fh = $upload->fileHandle; | ||
| 662 : | my @lines = <$fh>; $data = join('',@lines); | ||
| 663 : | if ($type eq 'Automatic') {$type = isText($data) ? 'Text' : 'Binary'} | ||
| 664 : | } | ||
| 665 : | if ($type eq 'Text') { | ||
| 666 : | $data =~ s/\r\n?/\n/g; | ||
| 667 : | open(UPLOAD,">$dir/$name") || $self->addbadmessage("Can't create file '$name'"); | ||
| 668 : | print UPLOAD $data; close(UPLOAD); | ||
| 669 : | $upload->dispose(); | ||
| 670 : | } else { | ||
| 671 : | $upload->disposeTo("$dir/$name"); | ||
| 672 : | } | ||
| 673 : | |||
| 674 : | $self->addgoodmessage("$type file '$name' uploaded successfully"); | ||
| 675 : | sh002i | 2898 | $self->Refresh; |
| 676 : | sh002i | 2896 | } |
| 677 : | |||
| 678 : | ################################################## | ||
| 679 : | ################################################## | ||
| 680 : | # | ||
| 681 : | sh002i | 2944 | # Print a confirmation dialog box |
| 682 : | sh002i | 2896 | # |
| 683 : | sub Confirm { | ||
| 684 : | sh002i | 2898 | my $message = shift; |
| 685 : | my $button = shift; | ||
| 686 : | sh002i | 2896 | |
| 687 : | sh002i | 2898 | print CGI::p(); |
| 688 : | print CGI::start_table({border=>1,cellspacing=>2,cellpadding=>20, style=>"margin: 1em 0 0 3em"}); | ||
| 689 : | print CGI::Tr( | ||
| 690 : | CGI::td( | ||
| 691 : | dpvc | 3111 | $message, |
| 692 : | CGI::input({type=>"text",name=>"name",size=>50}), | ||
| 693 : | CGI::p(), | ||
| 694 : | CGI::div({style=>"float:right; padding-right:3ex"}, | ||
| 695 : | CGI::input({type=>"submit",name=>"action",value=>$button})), # this will be the default | ||
| 696 : | CGI::div({style=>"float:left; padding-left:3ex"}, | ||
| 697 : | CGI::input({type=>"submit",name=>"action",value=>"Cancel"})), | ||
| 698 : | ), | ||
| 699 : | ); | ||
| 700 : | sh002i | 2898 | print CGI::end_table(); |
| 701 : | print CGI::hidden({name=>"confirmed",value=>1}); | ||
| 702 : | print CGI::script("window.document.FileManager.name.focus()"); | ||
| 703 : | sh002i | 2896 | } |
| 704 : | |||
| 705 : | ################################################## | ||
| 706 : | # | ||
| 707 : | sh002i | 2944 | # Check that there is exactly one vailid file |
| 708 : | sh002i | 2896 | # |
| 709 : | sub getFile { | ||
| 710 : | sh002i | 2898 | my $self = shift; my $action = shift; |
| 711 : | my @files = $self->r->param("files"); | ||
| 712 : | if (scalar(@files) > 1) { | ||
| 713 : | $self->addbadmessage("You can only $action one file at a time."); | ||
| 714 : | $self->Refresh unless $action eq 'download'; | ||
| 715 : | return; | ||
| 716 : | } | ||
| 717 : | if (scalar(@files) == 0 || $files[0] eq "") { | ||
| 718 : | $self->addbadmessage("You need to select a file to $action."); | ||
| 719 : | $self->Refresh unless $action eq 'download'; | ||
| 720 : | return; | ||
| 721 : | } | ||
| 722 : | my $pwd = checkPWD($self->{pwd} || $self->r->param('pwd') || '.') || '.'; | ||
| 723 : | $self->addbadmessage("You have specified an illegal file") | ||
| 724 : | unless checkPWD($pwd.'/'.$files[0],1); | ||
| 725 : | return $files[0]; | ||
| 726 : | sh002i | 2896 | } |
| 727 : | |||
| 728 : | ################################################## | ||
| 729 : | # | ||
| 730 : | sh002i | 2944 | # Get the entries for the directory menu |
| 731 : | sh002i | 2896 | # |
| 732 : | sub directoryMenu { | ||
| 733 : | sh002i | 2898 | my $course = shift; |
| 734 : | sh002i | 2944 | my $dir = shift; $dir =~ s!^\.(/|$)!!; |
| 735 : | sh002i | 2898 | my @dirs = split('/',$dir); |
| 736 : | my $menu = ""; my $pwd; | ||
| 737 : | |||
| 738 : | my (@values,%labels); | ||
| 739 : | while (scalar(@dirs)) { | ||
| 740 : | $pwd = join('/',(@dirs)[0..$#dirs]); | ||
| 741 : | $dir = pop(@dirs); | ||
| 742 : | push(@values,$pwd); $labels{$pwd} = $dir; | ||
| 743 : | } | ||
| 744 : | push(@values,'.'); $labels{'.'} = $course; | ||
| 745 : | return (\@values,\%labels); | ||
| 746 : | sh002i | 2896 | } |
| 747 : | |||
| 748 : | ################################################## | ||
| 749 : | # | ||
| 750 : | sh002i | 2944 | # Get the directory listing |
| 751 : | sh002i | 2896 | # |
| 752 : | sub directoryListing { | ||
| 753 : | sh002i | 2898 | my $root = shift; my $pwd = shift; |
| 754 : | my $dir = $root.'/'.$pwd; | ||
| 755 : | my (@values,%labels,$size,$data); | ||
| 756 : | sh002i | 2896 | |
| 757 : | gage | 2904 | return unless -d $dir and not -l $dir; #FIXME -- don't follow links |
| 758 : | sh002i | 2898 | my @names = sortByName(undef,grep(/^[^.]/,readDirectory($dir))); |
| 759 : | foreach my $name(@names) { | ||
| 760 : | gage | 2904 | unless ( $name eq 'DATA') { #FIXME don't view the DATA directory |
| 761 : | push(@values,$name); $labels{$name} = $name; | ||
| 762 : | $labels{$name} .= '/' if (-d $dir.'/'.$name); | ||
| 763 : | } | ||
| 764 : | sh002i | 2898 | } |
| 765 : | return (\@values,\%labels); | ||
| 766 : | sh002i | 2896 | } |
| 767 : | |||
| 768 : | ################################################## | ||
| 769 : | # | ||
| 770 : | sh002i | 2944 | # Normalize the working directory and check if it is OK. |
| 771 : | sh002i | 2896 | # |
| 772 : | sub checkPWD { | ||
| 773 : | sh002i | 2898 | my $pwd = shift; |
| 774 : | my $renameError = shift; | ||
| 775 : | sh002i | 2896 | |
| 776 : | sh002i | 2944 | $pwd =~ s!//+!/!g; # remove duplicate slashes |
| 777 : | $pwd =~ s!(^|/)~!$1_!g; # remove ~user references | ||
| 778 : | $pwd =~ s!(^|/)(\.(/|$))+!$1!g; # remove dot directories | ||
| 779 : | |||
| 780 : | # remove dir/.. constructions | ||
| 781 : | sh002i | 2898 | while ($pwd =~ s!((\.[^./]+|\.\.[^/]+|[^./][^/]*)/\.\.(/|$))!!) {}; |
| 782 : | sh002i | 2944 | |
| 783 : | $pwd =~ s!/$!!; # remove trailing / | ||
| 784 : | return if ($pwd =~ m!(^|/)\.\.(/|$)!); # Error if outside the root | ||
| 785 : | sh002i | 2896 | |
| 786 : | sh002i | 2898 | my $original = $pwd; |
| 787 : | sh002i | 2944 | $pwd =~ s!(^|/)\.!$1_!g; # don't enter hidden directories |
| 788 : | $pwd =~ s!^/!!; # remove leading / | ||
| 789 : | dpvc | 3111 | $pwd =~ s![^-_./A-Z0-9~ ]!_!gi; # no illegal characters |
| 790 : | sh002i | 2898 | return if $renameError && $original ne $pwd; |
| 791 : | sh002i | 2896 | |
| 792 : | sh002i | 2898 | $pwd = '.' if $pwd eq ''; |
| 793 : | return $pwd; | ||
| 794 : | sh002i | 2896 | } |
| 795 : | |||
| 796 : | ################################################## | ||
| 797 : | # | ||
| 798 : | sh002i | 2944 | # Check a name for bad characters, etc. |
| 799 : | sh002i | 2896 | # |
| 800 : | sub checkName { | ||
| 801 : | sh002i | 2898 | my $file = shift; |
| 802 : | sh002i | 2944 | $file =~ s!.*[/\\]!!; # remove directory |
| 803 : | $file =~ s/[^-_.a-zA-Z0-9 ]/_/g; # no illegal characters | ||
| 804 : | $file = "newfile.txt" unless $file; # no blank names | ||
| 805 : | $file =~ s/^\./_/; # no initial dot | ||
| 806 : | sh002i | 2898 | return $file; |
| 807 : | sh002i | 2896 | } |
| 808 : | |||
| 809 : | ################################################## | ||
| 810 : | # | ||
| 811 : | dpvc | 3111 | # Check that a file is uploaded to the correct directory |
| 812 : | # | ||
| 813 : | sub checkFileLocation { | ||
| 814 : | my $self = shift; | ||
| 815 : | my $extension = shift; $extension =~ s/.*\.//; | ||
| 816 : | my $dir = shift; | ||
| 817 : | return unless defined($uploadDir{$extension}); | ||
| 818 : | return if $dir =~ m/^$uploadDir{$extension}$/; | ||
| 819 : | $dir = $uploadDir{$extension}; $dir =~ s!/.*!!; | ||
| 820 : | $self->addbadmessage("Files with extension '.$extension' usually belong in '$dir'"); | ||
| 821 : | } | ||
| 822 : | |||
| 823 : | ################################################## | ||
| 824 : | # | ||
| 825 : | sh002i | 2944 | # Get a unique name (in case it already exists) |
| 826 : | sh002i | 2896 | # |
| 827 : | sub uniqueName { | ||
| 828 : | sh002i | 2898 | my $dir = shift; my $name = shift; |
| 829 : | dpvc | 3086 | return $name unless (-e "$dir/$name"); |
| 830 : | sh002i | 2898 | my $type = ""; my $n = -1; |
| 831 : | $type = $1 if ($name =~ s/(\.[^.]*)$//); | ||
| 832 : | $n = $1 if ($name =~ s/(\d+)$//); | ||
| 833 : | while (-e "$dir/$name$n$type") {if ($n < 0) {$n--} else {$n++}} | ||
| 834 : | return "$name$n$type"; | ||
| 835 : | sh002i | 2896 | } |
| 836 : | |||
| 837 : | ################################################## | ||
| 838 : | # | ||
| 839 : | sh002i | 2944 | # Verify that a name can be added tot he current |
| 840 : | # directory. | ||
| 841 : | sh002i | 2896 | # |
| 842 : | sub verifyName { | ||
| 843 : | sh002i | 2898 | my $self = shift; my $name = shift; my $object = shift; |
| 844 : | if ($name) { | ||
| 845 : | unless ($name =~ m!/!) { | ||
| 846 : | unless ($name =~ m!^\.!) { | ||
| 847 : | dpvc | 3111 | unless ($name =~ m![^-_.a-zA-Z0-9 ]!) { |
| 848 : | my $file = "$self->{courseRoot}/$self->{pwd}/$name"; | ||
| 849 : | return $file unless (-e $file); | ||
| 850 : | $self->addbadmessage("A file with that name already exists"); | ||
| 851 : | } else {$self->addbadmessage("Your $object name contains illegal characters")} | ||
| 852 : | sh002i | 2898 | } else {$self->addbadmessage("Your $object name may not begin with a dot")} |
| 853 : | } else {$self->addbadmessage("Your $object name may not contain a path component")} | ||
| 854 : | } else {$self->addbadmessage("You must specify a $object name")} | ||
| 855 : | return | ||
| 856 : | sh002i | 2896 | } |
| 857 : | |||
| 858 : | ################################################## | ||
| 859 : | # | ||
| 860 : | sh002i | 2944 | # Verify that a file path is valid |
| 861 : | sh002i | 2896 | # |
| 862 : | sub verifyPath { | ||
| 863 : | sh002i | 2898 | my $self = shift; my $path = shift; my $name = shift; |
| 864 : | sh002i | 2896 | |
| 865 : | sh002i | 2898 | if ($path) { |
| 866 : | unless ($path =~ m![^-_.a-zA-Z0-9 /]!) { | ||
| 867 : | unless ($path =~ m!^/!) { | ||
| 868 : | dpvc | 3111 | $path = checkPWD($self->{pwd}.'/'.$path,1); |
| 869 : | if ($path) { | ||
| 870 : | $path = $self->{courseRoot}.'/'.$path; | ||
| 871 : | $path .= '/'.$name if -d $path && $name; | ||
| 872 : | return $path unless (-e $path); | ||
| 873 : | $self->addbadmessage("A file with that name already exists"); | ||
| 874 : | } else {$self->addbadmessage("You have specified an illegal path")} | ||
| 875 : | sh002i | 2898 | } else {$self->addbadmessage("You can not specify an absolute path")} |
| 876 : | } else {$self->addbadmessage("Your file name contains illegal characters")} | ||
| 877 : | } else {$self->addbadmessage("You must specify a file name")} | ||
| 878 : | return | ||
| 879 : | sh002i | 2896 | } |
| 880 : | |||
| 881 : | ################################################## | ||
| 882 : | # | ||
| 883 : | sh002i | 2944 | # Make HTML symbols printable |
| 884 : | sh002i | 2896 | # |
| 885 : | sub showHTML { | ||
| 886 : | dpvc | 3111 | my $string = shift; |
| 887 : | return '' unless defined $string; | ||
| 888 : | $string =~ s/&/\&/g; | ||
| 889 : | $string =~ s/</\</g; | ||
| 890 : | $string =~ s/>/\>/g; | ||
| 891 : | $string; | ||
| 892 : | sh002i | 2896 | } |
| 893 : | |||
| 894 : | ################################################## | ||
| 895 : | # | ||
| 896 : | sh002i | 2944 | # Check if a string is plain text |
| 897 : | # (i.e., doesn't contain three non-regular | ||
| 898 : | # characters in a row.) | ||
| 899 : | sh002i | 2896 | # |
| 900 : | sub isText { | ||
| 901 : | sh002i | 2898 | my $string = shift; |
| 902 : | return $string !~ m/[^\s\x20-\x7E]{3,}/; | ||
| 903 : | sh002i | 2896 | } |
| 904 : | |||
| 905 : | ################################################## | ||
| 906 : | |||
| 907 : | 1; |
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