loncom/publisher/loncfile.pm - view

File: [LON-CAPA] / loncom / publisher / loncfile.pm
Revision 1.15: download - view: text, annotated - select for diffs
Sat Aug 24 03:56:58 2002 UTC (21 years, 8 months ago) by foxr
Branches: MAIN
CVS tags: HEAD

Bug 442: Two issues with special chars. solved here:
1. spaces in names - escape works fine on this issue.
2. apostrophe's in uploaded file names:

Apostrophe solution not so easy as spaces:  The problem was in the
Frame src tag for the lower frame of construction space.. it's of the form:
<frame> src='$lowerframe' ...Thanks to matt for finding this.
The embedded ' closes the src from the point of view of the html.  Amazingly the
 extra characters don't cause browsers to complain.  The problem: demonstrably,
escaping via lonnet::escape does nothing worth while.  Using my handy dandy
html pocket guide, I determined that lonnet::escape is too simple minded
and may in fact be not quite right.  did a:
1. made the quotations " rather than '
2. Substituted for " in $lowerframe by:
   $lowerframe=~s/\"/&quot\;/g;

Turning " -> &quot; as per the entity chart on pg 82 of HTML Pocket ref.
This works fine.

1: # The LearningOnline Network with CAPA 2: # Handler to rename files, etc, in construction space 3: # 4: # This file responds to the various buttons and events 5: # in the top frame of the construction space directory. 6: # Each event is processed in two phases. The first phase 7: # presents a page that describes the proposed action to the user 8: # and requests confirmation. The second phase commits the action 9: # and displays a page showing the results of the action. 10: # 11: 12: # 13: # $Id: loncfile.pm,v 1.15 2002/08/24 03:56:58 foxr Exp $ 14: # 15: # Copyright Michigan State University Board of Trustees 16: # 17: # This file is part of the LearningOnline Network with CAPA (LON-CAPA). 18: # 19: # LON-CAPA is free software; you can redistribute it and/or modify 20: # it under the terms of the GNU General Public License as published by 21: # the Free Software Foundation; either version 2 of the License, or 22: # (at your option) any later version. 23: # 24: # LON-CAPA is distributed in the hope that it will be useful, 25: # but WITHOUT ANY WARRANTY; without even the implied warranty of 26: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27: # GNU General Public License for more details. 28: # 29: # You should have received a copy of the GNU General Public License 30: # along with LON-CAPA; if not, write to the Free Software 31: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 32: # 33: # /home/httpd/html/adm/gpl.txt 34: # 35: # http://www.lon-capa.org/ 36: # 37: # 38: # (Handler to retrieve an old version of a file 39: # 40: # (Publication Handler 41: # 42: # (TeX Content Handler 43: # 44: # 05/29/00,05/30,10/11 Gerd Kortemeyer) 45: # 46: # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer 47: # 03/23 Guy Albertelli 48: # 03/24,03/29 Gerd Kortemeyer) 49: # 50: # 03/31,04/03,05/02,05/09,06/23,06/24 Gerd Kortemeyer) 51: # 52: # 06/23 Gerd Kortemeyer 53: # 05/07/02 Ron Fox: 54: # - Added Debug log output so that I can trace what the heck this 55: # undocumented thingy does. 56: # 05/28/02 Ron Fox: 57: # - Started putting in pod in standard format. 58: =pod 59: 60: =head1 NAME 61: 62: Apache::loncfile - Construction space file management. 63: 64: =head1 SYNOPSIS 65: 66: Content handler for buttons on the top frame of the construction space 67: directory. 68: 69: =head1 INTRODUCTION 70: 71: loncfile is invoked when buttons in the top frame of the construction 72: space directory listing are clicked. All operations procede in two phases. 73: The first phase describes to the user exactly what will be done. If the user 74: confirms the operation, the second phase commits the operation and indicates 75: completion. When the user dismisses the output of phase2, they are returned to 76: an "appropriate" directory listing in general. 77: 78: This is part of the LearningOnline Network with CAPA project 79: described at http://www.lon-capa.org. 80: 81: =head2 Subroutines 82: 83: =cut 84: 85: package Apache::loncfile; 86: 87: use strict; 88: use Apache::File; 89: use File::Basename; 90: use File::Copy; 91: use Apache::Constants qw(:common :http :methods); 92: use Apache::loncacc; 93: use Apache::Log (); 94: use Apache::lonnet; 95: 96: my $DEBUG=0; 97: my $r; # Needs to be global for some stuff RF. 98: 99: =pod 100: 101: =item Debug($request, $message) 102: 103: If debugging is enabled puts out a debuggin message determined by the 104: caller. The debug message goes to the Apache error log file. Debugging 105: is enabled by ssetting the module global DEBUG variable to nonzero (TRUE). 106: 107: Parameters: 108: 109: =over 4 110: 111: =item $request - The curretn request operation. 112: 113: =item $message - The message to put inthe log file. 114: 115: =back 116: 117: Returns: 118: nothing. 119: 120: =cut 121: 122: sub Debug { 123: 124: # Marshall the parameters. 125: 126: my $r = shift; 127: my $log = $r->log; 128: my $message = shift; 129: 130: # Put out the indicated message butonly if DEBUG is false. 131: 132: if ($DEBUG) { 133: $log->debug($message); 134: } 135: } 136: 137: =pod 138: 139: =item URLToPath($url) 140: 141: Convert a URL to a file system path. 142: 143: In order to manipulate the construction space objects, it is necessary 144: to access url identified objects a filespace objects. This function 145: translates a construction space URL to a file system path. 146: Parameters: 147: 148: =over 4 149: 150: =item Url - string [in] The url to convert. 151: 152: =back 153: 154: Returns: 155: 156: =over 4 157: 158: =item The corresponing file system path. 159: 160: =back 161: 162: Global References 163: 164: =over 4 165: 166: =item $r - Request object [in] Referenced in the &Debug calls. 167: 168: =back 169: 170: =cut 171: 172: sub URLToPath { 173: my $Url = shift; 174: &Debug($r, "UrlToPath got: $Url"); 175: $Url=~ s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/; 176: $Url=~ s/^http\:\/\/[^\/]+//; 177: &Debug($r, "Returning $Url \n"); 178: return $Url; 179: } 180: 181: =pod 182: 183: =item PublicationPath($domain, $user, $dir, $file) 184: 185: Determines the filesystem path corersponding to a published resource 186: specification. The returned value is the path. 187: Parameters: 188: 189: =over 4 190: 191: =item $domain - string [in] Name of the domain within which the resource is 192: stored. 193: 194: =item $user - string [in] Name of the user asking about the resource. 195: 196: =item $dir - Directory pathr elatvie to the top of the resource space0 197: 198: =item $file - name of the resource file itself without path info. 199: 200: =back 201: 202: =over 4 203: 204: Returns: 205: 206: =item string - full path to the file if it exists in publication space. 207: 208: =back 209: 210: =cut 211: 212: sub PublicationPath 213: { 214: my ($domain, $user, $dir, $file)=@_; 215: 216: return '/home/httpd/html/res/'.$domain.'/'.$user.'/'.$dir.'/'. 217: $file; 218: } 219: 220: =pod 221: 222: =item ConstructionPath($domain, $user, $dir, $file) 223: 224: Determines the filesystem path corersponding to a construction space 225: resource specification. The returned value is the path 226: Parameters: 227: 228: =over 4 229: 230: =item $user - string [in] Name of the user asking about the resource. 231: 232: =item $dir - Directory path relatvie to the top of the resource space 233: 234: =item $file - name of the resource file itself without path info. 235: 236: Returns: 237: 238: =item string - full path to the file if it exists in Construction space. 239: 240: =back 241: 242: =cut 243: 244: sub ConstructionPath { 245: my ($user, $dir, $file) = @_; 246: 247: return '/home/'.$user.'/public_html/'.$dir.'/'.$file; 248: 249: } 250: =pod 251: 252: =item ConstructionPathFromRelative($user, $relname) 253: 254: Determines the path to a construction space file given 255: the username and the path relative to the root of construction space. 256: 257: Parameters: 258: 259: =over 4 260: 261: =item $user - string [in] Name of the user in whose construction space the 262: file [will] live. 263: 264: =item $relname - string[in] Path to the file relative to the root of the 265: construction space. 266: 267: =back 268: 269: Returns: 270: 271: =over 4 272: 273: =item string - Full path to the file. 274: 275: =back 276: 277: =cut 278: 279: sub ConstructionPathFromRelative { 280: 281: my ($user, $relname) = @_; 282: return '/home/'.$user.'/public_html'.$relname; 283: 284: } 285: 286: =pod 287: 288: =item exists($user, $domain, $directory, $file) 289: 290: Determine if a resource file name has been publisehd or exists 291: in the construction space. 292: 293: Parameters: 294: 295: =over 4 296: 297: =item $user - string [in] - Name of the user for which to check. 298: 299: =item $domain - string [in] - Name of the domain in which the resource 300: might have been published. 301: 302: =item $dir - string [in] - Path relative to construction or resource space 303: in which the resource might live. 304: 305: =item $file - string [in] - Name of the file. 306: 307: =back 308: 309: Returns: 310: 311: =over 4 312: 313: =item string - Either where the resource exists as an html string that can 314: be embedded in a dialog or an empty string if the resource 315: does not exist. 316: 317: =back 318: 319: =cut 320: 321: sub exists { 322: my ($user, $domain, $dir, $file) = @_; 323: 324: # Create complete paths in publication and construction space. 325: 326: my $published = &PublicationPath($domain, $user, $dir, $file); 327: my $construct = &ConstructionPath($user, $dir, $file); 328: 329: # If the resource exists in either space indicate this fact. 330: # Note that the check for existence in resource space is stricter. 331: 332: my $result; 333: if ( -e $published) { 334: $result.='<p><font color=red>Warning: target file exists, and has been published!</font></p>'; 335: } 336: elsif ( -e $construct) { 337: $result.='<p><font color=red>Warning: target file exists!</font></p>'; 338: } 339: 340: return $result; 341: 342: } 343: 344: =pod 345: 346: =item checksuffix($old, $new) 347: 348: Determine if a resource filename suffix (the stuff after the .) would change 349: as a result of this operation. 350: 351: Parameters: 352: 353: =over 4 354: 355: =item $old = string [in] Previous filename. 356: 357: =item $new = string [in] Resultant filename. 358: 359: =back 360: 361: Returns: 362: 363: =over 4 364: 365: =item Empty string if everythikng worked. 366: 367: =item String containing an error message if there was a problem. 368: 369: =back 370: 371: =cut 372: 373: sub checksuffix { 374: my ($old,$new) = @_; 375: my $result; 376: my $oldsuffix; 377: my $newsuffix; 378: if ($new=~m:(.*/*)([^/]+)\.(\w+)$:) { $newsuffix=$3; } 379: if ($old=~m:(.*)/+([^/]+)\.(\w+)$:) { $oldsuffix=$3; } 380: if ($oldsuffix ne $newsuffix) { 381: $result.= 382: '<p><font color=red>Warning: change of MIME type!</font></p>'; 383: } 384: return $result; 385: } 386: =pod 387: 388: =item CloseForm1($request, $user, $file) 389: 390: Close of a form on the successful completion of phase 1 processing 391: 392: Parameters: 393: 394: =over 4 395: 396: =item $request - Apache Request Object [in] - Apache server request object. 397: 398: =item $cancelurl - the url to go to on cancel. 399: 400: =back 401: 402: =cut 403: 404: sub CloseForm1 { 405: my ($request, $cancelurl) = @_; 406: 407: 408: &Debug($request, "Cancel url is: ".$cancelurl); 409: $request->print('<p><input type=submit value=Continue></p></form>'); 410: $request->print('<form action="'.$cancelurl. 411: '" method=GET"><p><input type=submit value=Cancel><p></form>'); 412: 413: } 414: 415: 416: =pod 417: 418: =item CloseForm2($request, $user, $directory) 419: 420: Successfully close off the phase 2 form. 421: 422: Parameters: 423: 424: =over 4 425: 426: =item $request - Apache Request object [in] - The request that is being 427: executed. 428: 429: =item $user - string [in] - Name of the user that is initiating the 430: request. 431: 432: =item $directory - string [in] - Directory in which the operation is 433: being done relative to the top level construction space 434: directory. 435: 436: =back 437: 438: =cut 439: 440: sub CloseForm2 { 441: my ($request, $user, $directory) = @_; 442: 443: $request->print('<h3><a=href="/priv/'.$user.$directory.'/">Done </a> </h3>'); 444: } 445: 446: =pod 447: 448: =item Rename1($request, $filename, $user, $domain, $dir) 449: 450: Perform phase 1 processing of the file rename operation. 451: 452: Parameters: 453: 454: =over 4 455: 456: =item $request - Apache Request Object [in] The request object for the 457: current request. 458: 459: =item $filename - The filename relative to construction space. 460: 461: =item $user - Name of the user making the request. 462: 463: =item $domain - User login domain. 464: 465: =item $dir - Directory specification of the path to the file. 466: 467: =back 468: 469: Side effects: 470: 471: =over 4 472: 473: =item A new form is displayed prompting for confirmation. The newfilename 474: hidden field of this form is loaded with 475: new filename relative to the current directory ($dir). 476: 477: =back 478: 479: =cut 480: 481: sub Rename1 { 482: my ($request, $filename, $user, $domain, $dir) = @_; 483: &Debug($request, "Username - ".$user." filename: ".$filename."\n"); 484: my $conspace = $filename; 485: 486: my $cancelurl = "/priv/".$filename; 487: $cancelurl =~ s/\/home\///; 488: $cancelurl =~ s/\/public_html//; 489: 490: if(-e $conspace) { 491: if($ENV{'form.newfilename'}) { 492: my $newfilename = $ENV{'form.newfilename'}; 493: $request->print(&checksuffix($filename, $newfilename)); 494: $request->print(&exists($user, $domain, $dir, $newfilename)); 495: $request->print('<input type=hidden name=newfilename value="'. 496: $newfilename. 497: '"><p>Rename <tt>'.$filename.'</tt> to <tt>'. 498: $dir.'/'.$newfilename.'</tt>?</p>'); 499: &CloseForm1($request, $cancelurl); 500: } else { 501: $request->print('<p>No new filename specified</p></form>'); 502: return; 503: } 504: } else { 505: $request->print('<p> No such File </p> </form>'); 506: return; 507: } 508: 509: } 510: =pod 511: 512: =item Delete1 513: 514: Performs phase 1 processing of the delete operation. In phase one 515: we just check to be sure the file exists. 516: 517: Parameters: 518: 519: =over 4 520: 521: =item $request - Apache Request Object [in] request object for the current 522: request. 523: 524: =item $user - string [in] Name of session user. 525: 526: 527: =item $filename - string [in] Name fo the file to be deleted: 528: Filename is the full filesystem path to the file. 529: 530: =back 531: 532: =cut 533: 534: sub Delete1 { 535: my ($request, $user, $filename) = @_; 536: 537: my $cancelurl = '/priv/'.$filename; 538: $cancelurl =~ s/\/home\///; 539: $cancelurl =~ s/\/public_html//; 540: 541: 542: if( -e $filename) { 543: $request->print('<input type=hidden name=newfilename value="'. 544: $filename.'">'); 545: $request->print('<p> Delete <tt>'.$filename.'</tt>?</p>'); 546: &CloseForm1($request, $cancelurl); 547: } else { 548: $request->print('<p> No Such file: <tt>'.$filename.'</tt></p></form>'); 549: } 550: } 551: 552: =pod 553: 554: =item Copy1($request, $user, $domain, $filename, $newfilename) 555: 556: Performs phase 1 processing of the construction space copy command. 557: Ensure that the source fil eexists. Ensure that a destination exists, 558: also warn if the detination already exists. 559: 560: Parameters: 561: 562: =over 4 563: 564: =item $request - Apache Request Object [in] request object for the current 565: request. 566: 567: =item $user - string [in] Name of the user initiating the request. 568: 569: =item $domain - string [in] Domain the initiating user is logged in as 570: 571: =item $dir - string [in] Directory path. 572: 573: =item $filename - string [in] Source filename. 574: 575: =item $newfilename-string [in] Destination filename. 576: 577: =back 578: 579: =cut 580: 581: sub Copy1 { 582: my ($request, $user, $domain, $dir, $filename, $newfilename) = @_; 583: 584: my $cancelurl = "/priv/".$filename; 585: $cancelurl =~ s/\/home\///; 586: $cancelurl =~ s/\/public_html//; 587: 588: 589: 590: if(-e $filename) { 591: $request->print(&checksuffix($filename,$newfilename)); 592: $request->print(&exists($user, $domain, $dir, $newfilename)); 593: $request->print('<input type = hidden name = newfilename value = "'. 594: $dir.'/'.$newfilename. 595: '"><p>Copy <tt>'.$filename.'</tt> to'. 596: '<tt>'.$dir.'/'.$newfilename.'</tt>/?</p>'); 597: &CloseForm1($request, $cancelurl); 598: } else { 599: $request->print('<p>No such file <tt>'.$filename.'</p></form>'); 600: } 601: } 602: 603: =pod 604: 605: =item NewDir1 606: 607: Does all phase 1 processing of directory creation: 608: Ensures that the user provides a new directory name, 609: and that the directory does not already exist. 610: 611: Parameters: 612: 613: =over 4 614: 615: =item $request - Apache Request Object [in] - Server request object for the 616: current url.. 617: 618: =item $username - Name of the user that is requesting the directory creation. 619: 620: =item $path - current directory relative to construction spacee. 621: 622: =item $newdir - Name of the directory to be created; path relative to the 623: top level of construction space. 624: =back 625: 626: Side Effects: 627: 628: =over 4 629: 630: =item A new form is displayed. Clicking on the confirmation button 631: causes the newdir operation to transition into phase 2. The hidden field 632: "newfilename" is set with the construction space path to the new directory. 633: 634: 635: =back 636: 637: =cut 638: 639: 640: sub NewDir1 641: { 642: my ($request, $username, $path, $newdir) = @_; 643: 644: my $fullpath = '/home/'.$username.'/public_html/'. 645: $path.'/'.$newdir; 646: 647: my $cancelurl = '/priv/'.$username.'/'.$path; 648: 649: &Debug($request, "Full path is : ".$fullpath); 650: 651: if(-e $fullpath) { 652: $request->print('<p>Directory exists.</p></form>'); 653: } 654: else { 655: $request->print('<input type=hidden name=newfilename value="'. 656: $newdir.'"><p>Make new directory <tt>'. 657: $path."/".$newdir.'</tt>?</p>'); 658: &CloseForm1($request, $cancelurl); 659: 660: } 661: } 662: 663: =pod 664: 665: =item phaseone($r, $fn, $uname, $udom) 666: 667: Peforms phase one processing of the request. In phase one, error messages 668: are returned if the request cannot be performed (e.g. attempts to manipulate 669: files that are nonexistent). If the operation can be performed, what is 670: about to be done will be presented to the user for confirmation. If the 671: user confirms the request, then phase two is executed, the action 672: performed and reported to the user. 673: 674: Parameters: 675: 676: =over 4 677: 678: =item $r - request object [in] - The Apache request being executed. 679: 680: =item $fn = string [in] - The filename being manipulated by the 681: request. 682: 683: =item $uname - string [in] Name of user logged in and doing this action. 684: 685: =item $udom - string [in] Domain nmae under which the user logged in. 686: 687: =back 688: 689: =cut 690: 691: sub phaseone { 692: my ($r,$fn,$uname,$udom)=@_; 693: 694: $fn=~m:(.*)/([^/]+)\.(\w+)$:; 695: my $dir=$1; 696: my $main=$2; 697: my $suffix=$3; 698: 699: # my $conspace=ConstructionPathFromRelative($uname, $fn); 700: 701: 702: $r->print('<form action=/adm/cfile method=post>'. 703: '<input type=hidden name=filename value="/~'.$uname.$fn.'">'. 704: '<input type=hidden name=phase value=two>'. 705: '<input type=hidden name=action value='.$ENV{'form.action'}.'>'); 706: 707: if ($ENV{'form.action'} eq 'rename') { 708: 709: &Rename1($r, $fn, $uname, $udom, $dir); 710: 711: } elsif ($ENV{'form.action'} eq 'delete') { 712: 713: &Delete1($r, $uname, $fn); 714: 715: } elsif ($ENV{'form.action'} eq 'copy') { 716: if($ENV{'form.newfilename'}) { 717: my $newfilename = $ENV{'form.newfilename'}; 718: &Copy1($r, $uname, $udom, $dir, $fn, $newfilename); 719: }else { 720: $r->print('<p>No new filename specified.</p></form>'); 721: } 722: } elsif ($ENV{'form.action'} eq 'newdir') { 723: &NewDir1($r, $uname, $dir, $ENV{'form.newfilename'}); 724: } 725: 726: } 727: 728: =pod 729: 730: =item Rename2($request, $user, $directory, $oldfile, $newfile) 731: 732: Performs phase 2 procesing of a rename reequest. This is where the 733: actual rename is performed. 734: 735: Parameters 736: 737: =over 4 738: 739: =item $request - Apache request object [in] The request being processed. 740: 741: =item $user - string [in] The name of the user initiating the request. 742: 743: =item $directory - string [in] The name of the directory relative to the 744: construction space top level of the renamed file. 745: 746: =item $oldfile - Name of the file. 747: 748: =item $newfile - Name of the new file. 749: 750: =back 751: 752: Returns: 753: 754: =over 4 755: 756: =item 1 Success. 757: 758: =item 0 Failure. 759: 760: =cut 761: 762: sub Rename2 { 763: 764: my ($request, $user, $directory, $oldfile, $newfile) = @_; 765: 766: &Debug($request, "Rename2 directory: ".$directory." old file: ".$oldfile. 767: " new file ".$newfile."\n"); 768: &Debug($request, "Target is: ".$directory.'/'. 769: $newfile); 770: 771: if(-e $oldfile) { 772: unless(rename($oldfile, 773: $directory.'/'.$newfile)) { 774: $request->print('<font color=red>Error: '.$!.'</font>'); 775: return 0; 776: } else {} 777: } else { 778: $request->print("<p> No such file: /home".$user.'/public_html'. 779: $oldfile.' </p></form>'); 780: return 0; 781: } 782: return 1; 783: } 784: =pod 785: 786: =item Delete2($request, $user, $filename) 787: 788: Performs phase two of a delete. The user has confirmed that they want 789: to delete the selected file. The file is deleted and the results of the 790: delete attempt are indicated. 791: 792: Parameters: 793: 794: =over 4 795: 796: =item $request - Apache Request object [in] the request object for the current 797: delete operation. 798: 799: =item $user - string [in] The name of the user initiating the delete 800: request. 801: 802: =item $filename - string [in] The name of the file, relative to construction space, 803: to delete. 804: 805: =back 806: 807: Returns: 808: 1 - success. 809: 0 - Failure. 810: 811: =cut 812: 813: sub Delete2 { 814: my ($request, $user, $filename) = @_; 815: 816: if(-e $filename) { 817: unless(unlink($filename)) { 818: $request->print('<font color=red>Error: '.$!.'</font>'); 819: return 0; 820: } 821: } else { 822: $request->print('<p> No such file. </form'); 823: return 0; 824: } 825: return 1; 826: } 827: 828: =pod 829: 830: =item Copy2($request, $username, $dir, $oldfile, $newfile) 831: 832: Performs phase 2 of a copy. The file is copied and the status 833: of that copy is reported back to the user. 834: 835: =over 4 836: 837: =item $request - Apache request object [in]; the apache request currently 838: being executed. 839: 840: =item $username - string [in] Name of the user who is requesting the copy. 841: 842: =item $dir - string [in] Directory path relative to the construction space 843: of the destination file. 844: 845: =item $oldfile - string [in] Name of the source file. 846: 847: =item $newfile - string [in] Name of the destination file. 848: 849: 850: =back 851: 852: Returns 0 failure, and 0 successs. 853: 854: =cut 855: 856: sub Copy2 { 857: my ($request, $username, $dir, $oldfile, $newfile) = @_; 858: &Debug($request ,"Will try to copy $oldfile to $newfile"); 859: if(-e $oldfile) { 860: unless (copy($oldfile, $newfile)) { 861: $request->print('<font color=red> copy Error: '.$!.'</font>'); 862: return 0; 863: } else { 864: unless (chmod(0660, $newfile)) { 865: $request->print('<font color=red> chmod error: '.$!.'</font>'); 866: return 0; 867: } 868: return 1; 869: } 870: } else { 871: $request->print('<p> No such file </p>'); 872: return 0; 873: } 874: return 1; 875: } 876: =pod 877: 878: =item NewDir2($request, $user, $newdirectory) 879: 880: Performs phase 2 processing of directory creation. This involves creating the directory and 881: reporting the results of that creation to the user. 882: 883: Parameters: 884: =over 4 885: 886: =item $request - Apache request object [in]. Object representing the current HTTP request. 887: 888: =item $user - string [in] The name of the user that is initiating the request. 889: 890: =item $newdirectory - string [in] The full path of the directory being created. 891: 892: =back 893: 894: Returns 0 - failure 1 - success. 895: 896: =cut 897: 898: sub NewDir2 { 899: my ($request, $user, $newdirectory) = @_; 900: 901: unless(mkdir($newdirectory, 02770)) { 902: $request->print('<font color=red>Error: '.$!.'</font>'); 903: return 0; 904: } 905: unless(chmod(02770, ($newdirectory))) { 906: $request->print('<font color=red> Error: '.$!.'</font>'); 907: return 0; 908: } 909: return 1; 910: } 911: 912: =pod 913: 914: =item phasetwo($r, $fn, $uname, $udom) 915: 916: Controls the phase 2 processing of file management 917: requests for construction space. In phase one, the user 918: was asked to confirm the operation. In phase 2, the operation 919: is performed and the result is shown. 920: 921: The strategy is to break out the processing into specific action processors 922: named action2 where action is the requested action and the 2 denotes 923: phase 2 processing. 924: 925: Parameters: 926: 927: =over 4 928: 929: =item $r - Apache Request object [in] The request object for this httpd 930: transaction. 931: 932: =item $fn - string [in] A filename indicating the object that is being 933: manipulated. 934: 935: =item $uname - string [in] The name of the user initiating the file management 936: request. 937: 938: =item $udom - string [in] The login domain of the user initiating the 939: file management request. 940: =back 941: 942: =cut 943: 944: sub phasetwo { 945: my ($r,$fn,$uname,$udom)=@_; 946: 947: &Debug($r, "loncfile - Entering phase 2 for $fn"); 948: 949: # Break down the file into it's component pieces. 950: 951: $fn=~/(.*)\/([^\/]+)\.(\w+)$/; 952: my $dir=$1; # Directory path 953: my $main=$2; # Filename. 954: my $suffix=$3; # Extension. 955: 956: my $dest; # On success this is where we'll go. 957: 958: &Debug($r, 959: "loncfile::phase2 dir = $dir main = $main suffix = $suffix"); 960: &Debug($r, 961: " newfilename = ".$ENV{'form.newfilename'}); 962: 963: my $conspace=$fn; 964: 965: &Debug($r, 966: "loncfile::phase2 Full construction space name: $conspace"); 967: 968: &Debug($r, 969: "loncfie::phase2 action is $ENV{'form.action'}"); 970: 971: # Select the appropriate processing sub. 972: 973: if ($ENV{'form.action'} eq 'rename') { # Rename. 974: if($ENV{'form.newfilename'}) { 975: if(!&Rename2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) { 976: return; 977: } 978: # Prepend the directory to the new name to form the basis of the 979: # url of the new resource. 980: # 981: $dest = $dir."/".$ENV{'form.newfilename'}; 982: } 983: } elsif ($ENV{'form.action'} eq 'delete') { 984: if(!&Delete2($r, $uname, $ENV{'form.newfilename'})) { 985: return ; 986: } 987: # Once a resource is deleted, we just list the directory that 988: # previously held it. 989: # 990: $dest = $dir."/"; # Parent dir. 991: } elsif ($ENV{'form.action'} eq 'copy') { 992: if($ENV{'form.newfilename'}) { 993: if(!&Copy2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) { 994: return 995: } 996: $dest = $ENV{'form.newfilename'}; 997: 998: } else { 999: $r->print('<p>No New filename specified</form>'); 1000: return; 1001: } 1002: 1003: } elsif ($ENV{'form.action'} eq 'newdir') { 1004: # 1005: # Since the newfilename form field is construction space 1006: # relative, ew need to prepend the current path; now in $fn. 1007: # 1008: my $newdir= $fn.$ENV{'form.newfilename'}; 1009: if(!&NewDir2($r, $uname, $newdir)) { 1010: return; 1011: } 1012: $dest = $newdir."/" 1013: } 1014: # 1015: # Substitute for priv for the first home in $dir to get our 1016: # construction space path. 1017: # 1018: &Debug($r, "Final url is: $dest"); 1019: $dest =~ s/\/home\//\/priv\//; 1020: $dest =~ s/\/public_html//; 1021: 1022: my $base = &Apache::lonnet::escape(&File::Basename::basename($dest)); 1023: my $dpath= &File::Basename::dirname($dest); 1024: $dest = $dpath.'/'.$base; 1025: 1026: 1027: &Debug($r, "Final url after rewrite: $dest"); 1028: 1029: $r->print('<h3><a href="'.$dest.'">Done</a></h3>'); 1030: } 1031: 1032: sub handler { 1033: 1034: $r=shift; 1035: 1036: 1037: &Debug($r, "loncfile.pm - handler entered"); 1038: &Debug($r, " filename: ".$ENV{'form.filename'}); 1039: &Debug($r, " newfilename: ".$ENV{'form.newfilename'}); 1040: 1041: my $fn; 1042: 1043: if ($ENV{'form.filename'}) { 1044: $fn=$ENV{'form.filename'}; 1045: &Debug($r, "loncfile::handler - raw url: $fn"); 1046: # $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/; 1047: # $fn=~s/^http\:\/\/[^\/]+//; 1048: $fn=URLToPath($fn); 1049: &Debug($r, "loncfile::handler - doctored url: $fn"); 1050: 1051: } else { 1052: &Debug($r, "loncfile::handler - no form.filename"); 1053: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}. 1054: ' unspecified filename for cfile', $r->filename); 1055: return HTTP_NOT_FOUND; 1056: } 1057: 1058: unless ($fn) { 1059: &Debug($r, "loncfile::handler - doctored url is empty"); 1060: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}. 1061: ' trying to cfile non-existing file', $r->filename); 1062: return HTTP_NOT_FOUND; 1063: } 1064: 1065: # ----------------------------------------------------------- Start page output 1066: my $uname; 1067: my $udom; 1068: 1069: ($uname,$udom)= 1070: &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain')); 1071: &Debug($r, 1072: "loncfile::handler constructaccess uname = $uname domain = $udom"); 1073: unless (($uname) && ($udom)) { 1074: $r->log_reason($uname.' at '.$udom. 1075: ' trying to manipulate file '.$ENV{'form.filename'}. 1076: ' ('.$fn.') - not authorized', 1077: $r->filename); 1078: return HTTP_NOT_ACCEPTABLE; 1079: } 1080: 1081: $fn=~s/\/\~(\w+)//; 1082: &Debug($r, "loncfile::handler ~ removed filename: $fn"); 1083: 1084: $r->content_type('text/html'); 1085: $r->send_http_header; 1086: 1087: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>'); 1088: 1089: $r->print( 1090: '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>'); 1091: 1092: 1093: $r->print('<h1>Construction Space <tt>'.$fn.'</tt></h1>'); 1094: 1095: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) { 1096: $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom. 1097: '</font></h3>'); 1098: } 1099: 1100: 1101: &Debug($r, "loncfile::handler Form action is $ENV{'form.action'} "); 1102: if ($ENV{'form.action'} eq 'delete') { 1103: 1104: $r->print('<h3>Delete</h3>'); 1105: } elsif ($ENV{'form.action'} eq 'rename') { 1106: $r->print('<h3>Rename</h3>'); 1107: } elsif ($ENV{'form.action'} eq 'newdir') { 1108: $r->print('<h3>New Directory</h3>'); 1109: } elsif ($ENV{'form.action'} eq 'copy') { 1110: $r->print('<h3>Copy</h3>'); 1111: } else { 1112: $r->print('<p>Unknown Action</body></html>'); 1113: return OK; 1114: } 1115: if ($ENV{'form.phase'} eq 'two') { 1116: &Debug($r, "loncfile::handler entering phase2"); 1117: &phasetwo($r,$fn,$uname,$udom); 1118: } else { 1119: &Debug($r, "loncfile::handler entering phase1"); 1120: &phaseone($r,$fn,$uname,$udom); 1121: } 1122: 1123: $r->print('</body></html>'); 1124: return OK; 1125: } 1126: 1127: 1; 1128: __END__ 1129: