apps/filebrowser/views.py

   1 # coding: utf-8
   2
   3 # general imports
   4 import os, re, locale
   5 from time import gmtime, strftime
   6
   7 # django imports
   8 from django.shortcuts import render_to_response, HttpResponse
   9 from django.template import RequestContext as Context
  10 from django.http import HttpResponseRedirect
  11 from django.contrib.admin.views.decorators import staff_member_required
  12 from django.views.decorators.cache import never_cache
  13 from django.utils.translation import ugettext as _
  14 from django.conf import settings
  15 from django import forms
  16 from django.core.urlresolvers import reverse
  17 from django.core.exceptions import ImproperlyConfigured
  18 from django.dispatch import Signal
  19
  20 from django.utils.encoding import smart_unicode
  21
  22 # filebrowser imports
  23 from filebrowser.fb_settings import *
  24 from filebrowser.functions import _url_to_path, _path_to_url, _get_path, _get_file, _get_version_path, _get_breadcrumbs, _get_filterdate, _get_settings_var, _handle_file_upload, _get_file_type, _url_join, _convert_filename
  25 from filebrowser.templatetags.fb_tags import query_helper
  26 from filebrowser.base import FileObject
  27 from filebrowser.decorators import flash_login_required
  28
  29 # Precompile regular expressions
  30 filter_re = []
  31 for exp in EXCLUDE:
  32    filter_re.append(re.compile(exp))
  33 for k, v in VERSIONS.iteritems():
  34     exp = (r'_%s.(%s)') % (k, '|'.join(EXTENSION_LIST))
  35     filter_re.append(re.compile(exp))
  36
  37
  38 def browse(request):
  39     """
  40     Browse Files/Directories.
  41     """
  42
  43     # QUERY / PATH CHECK
  44     query = request.GET
  45     path = _get_path(query.get('dir', ''))
  46     directory = _get_path('')
  47
  48     if path is None:
  49         msg = _('Directory/File does not exist.')
  50         request.user.message_set.create(message = msg)
  51         if directory is None:
  52             # The DIRECTORY does not exist, raise an error to prevent eternal redirecting.
  53             raise ImproperlyConfigured, _("Error finding upload directory. Maybe it does not exist?")
  54         redirect_url = reverse("fb_browse") + query_helper(query, "", "dir")
  55         return HttpResponseRedirect(redirect_url)
  56     abs_path = os.path.join(MEDIA_ROOT, DIRECTORY, path)
  57
  58     # INITIAL VARIABLES
  59     results_var = {'results_total': 0, 'results_current': 0, 'delete_total': 0, 'images_total': 0, 'select_total': 0 }
  60     counter = {}
  61     for k, v in EXTENSIONS.iteritems():
  62         counter[k] = 0
  63
  64     dir_list = os.listdir(abs_path)
  65     files = []
  66     print "LISTING FILES: ", dir_list
  67     for file in dir_list:
  68         print repr(file)
  69         # EXCLUDE FILES MATCHING VERSIONS_PREFIX OR ANY OF THE EXCLUDE PATTERNS
  70         filtered = file.startswith('.')
  71         for re_prefix in filter_re:
  72             if re_prefix.search(file):
  73                 filtered = True
  74         if filtered:
  75             continue
  76         results_var['results_total'] += 1
  77
  78         # CREATE FILEOBJECT
  79         fileobject = FileObject(os.path.join(DIRECTORY, path, file))
  80
  81         # FILTER / SEARCH
  82         append = False
  83         if fileobject.filetype == request.GET.get('filter_type', fileobject.filetype) and _get_filterdate(request.GET.get('filter_date', ''), fileobject.date):
  84             append = True
  85         if request.GET.get('q') and not re.compile(request.GET.get('q').lower(), re.M).search(file.lower()):
  86             append = False
  87
  88         # APPEND FILE_LIST
  89         if append:
  90             files.append(fileobject)
  91             results_var['results_current'] += 1
  92             # COUNTER/RESULTS
  93             if fileobject.filetype == 'Image':
  94                 results_var['images_total'] += 1
  95             if fileobject.filetype != 'Folder':
  96                 results_var['delete_total'] += 1
  97             elif fileobject.filetype == 'Folder' and fileobject.is_empty:
  98                 results_var['delete_total'] += 1
  99             if query.get('type') and query.get('type') in SELECT_FORMATS and fileobject.filetype in SELECT_FORMATS[query.get('type')]:
 100                 results_var['select_total'] += 1
 101             elif not query.get('type'):
 102                 results_var['select_total'] += 1
 103
 104         # COUNTER/RESULTS
 105         if fileobject.filetype:
 106             counter[fileobject.filetype] += 1
 107
 108     # SORTING
 109     files.sort(key = lambda e: getattr(e, request.GET.get('o', DEFAULT_ORDER)))
 110     if request.GET.get('ot') == "desc":
 111         files.reverse()
 112
 113     return render_to_response('filebrowser/index.html', {
 114         'dir': path,
 115         'files': files,
 116         'results_var': results_var,
 117         'counter': counter,
 118         'query': query,
 119         'title': _(u'FileBrowser'),
 120         'settings_var': _get_settings_var(),
 121         'breadcrumbs': _get_breadcrumbs(query, path, ''),
 122     }, context_instance = Context(request))
 123 browse = staff_member_required(never_cache(browse))
 124
 125
 126 # mkdir signals
 127 filebrowser_pre_createdir = Signal(providing_args = ["path", "dirname"])
 128 filebrowser_post_createdir = Signal(providing_args = ["path", "dirname"])
 129
 130 def mkdir(request):
 131     """
 132     Make Directory.
 133     """
 134
 135     from filebrowser.forms import MakeDirForm
 136
 137     # QUERY / PATH CHECK
 138     query = request.GET
 139     path = _get_path(query.get('dir', ''))
 140     if path is None:
 141         msg = _('Directory/File does not exist.')
 142         request.user.message_set.create(message = msg)
 143         return HttpResponseRedirect(reverse("fb_browse"))
 144     abs_path = os.path.join(MEDIA_ROOT, DIRECTORY, path)
 145
 146     if request.method == 'POST':
 147         form = MakeDirForm(abs_path, request.POST)
 148         if form.is_valid():
 149             server_path = os.path.join(abs_path, form.cleaned_data['dir_name'])
 150             try:
 151                 # PRE CREATE SIGNAL
 152                 filebrowser_pre_createdir.send(sender = request, path = path, dirname = form.cleaned_data['dir_name'])
 153                 # CREATE FOLDER
 154                 os.mkdir(server_path)
 155                 os.chmod(server_path, 0775)
 156                 # POST CREATE SIGNAL
 157                 filebrowser_post_createdir.send(sender = request, path = path, dirname = form.cleaned_data['dir_name'])
 158                 # MESSAGE & REDIRECT
 159                 msg = _('The Folder %s was successfully created.') % (form.cleaned_data['dir_name'])
 160                 request.user.message_set.create(message = msg)
 161                 # on redirect, sort by date desc to see the new directory on top of the list
 162                 # remove filter in order to actually _see_ the new folder
 163                 redirect_url = reverse("fb_browse") + query_helper(query, "ot=desc,o=date", "ot,o,filter_type,filter_date,q")
 164                 return HttpResponseRedirect(redirect_url)
 165             except OSError, (errno, strerror):
 166                 if errno == 13:
 167                     form.errors['dir_name'] = forms.util.ErrorList([_('Permission denied.')])
 168                 else:
 169                     form.errors['dir_name'] = forms.util.ErrorList([_('Error creating directory.')])
 170     else:
 171         form = MakeDirForm(abs_path)
 172
 173     return render_to_response('filebrowser/makedir.html', {
 174         'form': form,
 175         'query': query,
 176         'title': _(u'New Folder'),
 177         'settings_var': _get_settings_var(),
 178         'breadcrumbs': _get_breadcrumbs(query, path, _(u'New Folder')),
 179     }, context_instance = Context(request))
 180 mkdir = staff_member_required(never_cache(mkdir))
 181
 182
 183 def upload(request):
 184     """
 185     Multipe File Upload.
 186     """
 187
 188     from django.http import parse_cookie
 189
 190     # QUERY / PATH CHECK
 191     query = request.GET
 192     path = _get_path(query.get('dir', ''))
 193     if path is None:
 194         msg = _('Directory/File does not exist.')
 195         request.user.message_set.create(message = msg)
 196         return HttpResponseRedirect(reverse("fb_browse"))
 197     abs_path = os.path.join(MEDIA_ROOT, DIRECTORY, path)
 198
 199     # SESSION (used for flash-uploading)
 200     cookie_dict = parse_cookie(request.META.get('HTTP_COOKIE', ''))
 201     engine = __import__(settings.SESSION_ENGINE, {}, {}, [''])
 202     session_key = cookie_dict.get(settings.SESSION_COOKIE_NAME, None)
 203
 204     return render_to_response('filebrowser/upload.html', {
 205         'query': query,
 206         'title': _(u'Select files to upload'),
 207         'settings_var': _get_settings_var(),
 208         'breadcrumbs': _get_breadcrumbs(query, path, _(u'Upload')),
 209         'session_key': session_key,
 210     }, context_instance = Context(request))
 211 upload = staff_member_required(never_cache(upload))
 212
 213
 214 def _check_file(request):
 215     """
 216     Check if file already exists on the server.
 217     """
 218
 219     from django.utils import simplejson
 220
 221     folder = request.POST.get('folder')
 222     fb_uploadurl_re = re.compile(r'^(%s)' % reverse("fb_upload"))
 223     folder = fb_uploadurl_re.sub('', folder)
 224
 225     fileArray = {}
 226     if request.method == 'POST':
 227         for k, v in request.POST.items():
 228             if k != "folder":
 229                 v = _convert_filename(v)
 230                 if os.path.isfile(os.path.join(MEDIA_ROOT, DIRECTORY, folder, v)):
 231                     fileArray[k] = v
 232
 233     return HttpResponse(simplejson.dumps(fileArray))
 234
 235
 236 # upload signals
 237 filebrowser_pre_upload = Signal(providing_args = ["path", "file"])
 238 filebrowser_post_upload = Signal(providing_args = ["path", "file"])
 239
 240 def _upload_file(request):
 241     """
 242     Upload file to the server.
 243     """
 244
 245     from django.core.files.move import file_move_safe
 246
 247     if request.method == 'POST':
 248         folder = request.POST.get('folder')
 249         fb_uploadurl_re = re.compile(r'^(%s)' % reverse("fb_upload"))
 250         folder = fb_uploadurl_re.sub('', folder)
 251         abs_path = os.path.join(MEDIA_ROOT, DIRECTORY, folder)
 252         if request.FILES:
 253             filedata = request.FILES['Filedata']
 254             filedata.name = _convert_filename(filedata.name)
 255             # PRE UPLOAD SIGNAL
 256             filebrowser_pre_upload.send(sender = request, path = request.POST.get('folder'), file = filedata)
 257             # HANDLE UPLOAD
 258             uploadedfile = _handle_file_upload(abs_path, filedata)
 259             # MOVE UPLOADED FILE
 260             # if file already exists
 261             if os.path.isfile(os.path.join(MEDIA_ROOT, DIRECTORY, folder, filedata.name)):
 262                 old_file = os.path.join(abs_path, filedata.name)
 263                 new_file = os.path.join(abs_path, uploadedfile)
 264                 file_move_safe(new_file, old_file)
 265             # POST UPLOAD SIGNAL
 266             filebrowser_post_upload.send(sender = request, path = request.POST.get('folder'), file = FileObject(os.path.join(DIRECTORY, folder, filedata.name)))
 267     return HttpResponse('True')
 268 _upload_file = flash_login_required(_upload_file)
 269
 270
 271 # delete signals
 272 filebrowser_pre_delete = Signal(providing_args = ["path", "filename"])
 273 filebrowser_post_delete = Signal(providing_args = ["path", "filename"])
 274
 275 def delete(request):
 276     """
 277     Delete existing File/Directory.
 278
 279     When trying to delete a Directory, the Directory has to be empty.
 280     """
 281
 282     # QUERY / PATH CHECK
 283     query = request.GET
 284     path = _get_path(query.get('dir', ''))
 285     filename = _get_file(query.get('dir', ''), query.get('filename', ''))
 286     if path is None or filename is None:
 287         msg = _('Directory/File does not exist.')
 288         request.user.message_set.create(message = msg)
 289         return HttpResponseRedirect(reverse("fb_browse"))
 290     abs_path = os.path.join(MEDIA_ROOT, DIRECTORY, path)
 291
 292     msg = ""
 293     if request.GET:
 294         if request.GET.get('filetype') != "Folder":
 295             relative_server_path = os.path.join(DIRECTORY, path, filename)
 296             try:
 297                 # PRE DELETE SIGNAL
 298                 filebrowser_pre_delete.send(sender = request, path = path, filename = filename)
 299                 # DELETE IMAGE VERSIONS/THUMBNAILS
 300                 for version in VERSIONS:
 301                     try:
 302                         os.unlink(os.path.join(MEDIA_ROOT, _get_version_path(relative_server_path, version)))
 303                     except:
 304                         pass
 305                 # DELETE FILE
 306                 os.unlink(os.path.join(abs_path, filename))
 307                 # POST DELETE SIGNAL
 308                 filebrowser_post_delete.send(sender = request, path = path, filename = filename)
 309                 # MESSAGE & REDIRECT
 310                 msg = _('The file %s was successfully deleted.') % (filename.lower())
 311                 request.user.message_set.create(message = msg)
 312                 redirect_url = reverse("fb_browse") + query_helper(query, "", "filename,filetype")
 313                 return HttpResponseRedirect(redirect_url)
 314             except OSError:
 315                 # todo: define error message
 316                 msg = OSError
 317         else:
 318             try:
 319                 # PRE DELETE SIGNAL
 320                 filebrowser_pre_delete.send(sender = request, path = path, filename = filename)
 321                 # DELETE FOLDER
 322                 os.rmdir(os.path.join(abs_path, filename))
 323                 # POST DELETE SIGNAL
 324                 filebrowser_post_delete.send(sender = request, path = path, filename = filename)
 325                 # MESSAGE & REDIRECT
 326                 msg = _('The directory %s was successfully deleted.') % (filename.lower())
 327                 request.user.message_set.create(message = msg)
 328                 redirect_url = reverse("fb_browse") + query_helper(query, "", "filename,filetype")
 329                 return HttpResponseRedirect(redirect_url)
 330             except OSError:
 331                 # todo: define error message
 332                 msg = OSError
 333
 334     if msg:
 335         request.user.message_set.create(message = msg)
 336
 337     return render_to_response('filebrowser/index.html', {
 338         'dir': dir_name,
 339         'file': request.GET.get('filename', ''),
 340         'query': query,
 341         'settings_var': _get_settings_var(),
 342         'breadcrumbs': _get_breadcrumbs(query, dir_name, ''),
 343     }, context_instance = Context(request))
 344 delete = staff_member_required(never_cache(delete))
 345
 346
 347 # delete signals
 348 filebrowser_pre_rename = Signal(providing_args = ["path", "filename"])
 349 filebrowser_post_rename = Signal(providing_args = ["path", "filename"])
 350
 351 def rename(request):
 352     """
 353     Rename existing File/Directory.
 354
 355     Includes renaming existing Image Versions/Thumbnails.
 356     """
 357
 358     from filebrowser.forms import RenameForm
 359
 360     # QUERY / PATH CHECK
 361     query = request.GET
 362     path = _get_path(query.get('dir', ''))
 363     filename = _get_file(query.get('dir', ''), query.get('filename', ''))
 364     if path is None or filename is None:
 365         msg = _('Directory/File does not exist.')
 366         request.user.message_set.create(message = msg)
 367         return HttpResponseRedirect(reverse("fb_browse"))
 368     abs_path = os.path.join(MEDIA_ROOT, DIRECTORY, path)
 369     file_extension = os.path.splitext(filename)[1].lower()
 370
 371     if request.method == 'POST':
 372         form = RenameForm(abs_path, file_extension, request.POST)
 373         if form.is_valid():
 374             relative_server_path = os.path.join(DIRECTORY, path, filename)
 375             new_relative_server_path = os.path.join(DIRECTORY, path, form.cleaned_data['name'] + file_extension)
 376             try:
 377                 # PRE RENAME SIGNAL
 378                 filebrowser_pre_delete.send(sender = request, path = path, filename = filename)
 379                 # DELETE IMAGE VERSIONS/THUMBNAILS
 380                 # regenerating versions/thumbs will be done automatically
 381                 for version in VERSIONS:
 382                     try:
 383                         os.unlink(os.path.join(MEDIA_ROOT, _get_version_path(relative_server_path, version)))
 384                     except:
 385                         pass
 386                 # RENAME ORIGINAL
 387                 os.rename(os.path.join(MEDIA_ROOT, relative_server_path), os.path.join(MEDIA_ROOT, new_relative_server_path))
 388                 # POST RENAME SIGNAL
 389                 filebrowser_post_delete.send(sender = request, path = path, filename = filename)
 390                 # MESSAGE & REDIRECT
 391                 msg = _('Renaming was successful.')
 392                 request.user.message_set.create(message = msg)
 393                 redirect_url = reverse("fb_browse") + query_helper(query, "", "filename")
 394                 return HttpResponseRedirect(redirect_url)
 395             except OSError, (errno, strerror):
 396                 form.errors['name'] = forms.util.ErrorList([_('Error.')])
 397     else:
 398         form = RenameForm(abs_path, file_extension)
 399
 400     return render_to_response('filebrowser/rename.html', {
 401         'form': form,
 402         'query': query,
 403         'file_extension': file_extension,
 404         'title': _(u'Rename "%s"') % filename,
 405         'settings_var': _get_settings_var(),
 406         'breadcrumbs': _get_breadcrumbs(query, path, _(u'Rename')),
 407     }, context_instance = Context(request))
 408 rename = staff_member_required(never_cache(rename))
 409
 410
 411 def versions(request):
 412     """
 413     Show all Versions for an Image according to ADMIN_VERSIONS.
 414     """
 415
 416     # QUERY / PATH CHECK
 417     query = request.GET
 418     path = _get_path(query.get('dir', ''))
 419     filename = _get_file(query.get('dir', ''), query.get('filename', ''))
 420     if path is None or filename is None:
 421         msg = _('Directory/File does not exist.')
 422         request.user.message_set.create(message = msg)
 423         return HttpResponseRedirect(reverse("fb_browse"))
 424     abs_path = os.path.join(MEDIA_ROOT, DIRECTORY, path)
 425
 426     return render_to_response('filebrowser/versions.html', {
 427         'original': _path_to_url(os.path.join(DIRECTORY, path, filename)),
 428         'query': query,
 429         'title': _(u'Versions for "%s"') % filename,
 430         'settings_var': _get_settings_var(),
 431         'breadcrumbs': _get_breadcrumbs(query, path, _(u'Versions for "%s"') % filename),
 432     }, context_instance = Context(request))
 433 versions = staff_member_required(never_cache(versions))
 434
 435