apps/explorer/views.py

   1 import urllib2
   2 import hg
   3 from librarian import html, parser, dcparser, ParseError, ValidationError
   4
   5 from django.conf import settings
   6 from django.contrib.auth.decorators import login_required, permission_required
   7 from django.core.paginator import Paginator, InvalidPage, EmptyPage
   8 from django.core.urlresolvers import reverse
   9 from django.http import HttpResponseRedirect, HttpResponse
  10 from django.utils import simplejson as json
  11 from django.views.generic.simple import direct_to_template
  12
  13 from explorer import forms, models
  14
  15
  16 #
  17 # Some useful decorators
  18 #
  19 def with_repo(view):
  20     """Open a repository for this view"""
  21     def view_with_repo(request, *args, **kwargs):
  22         kwargs['repo'] = hg.Repository(settings.REPOSITORY_PATH)
  23         return view(request, *args, **kwargs)
  24     return view_with_repo
  25
  26 #
  27 def ajax_login_required(view):
  28     """Similar ro @login_required, but instead of redirect,
  29     just return some JSON stuff with error."""
  30     def view_with_auth(request, *args, **kwargs):
  31         if request.user.is_authenticated():
  32             return view(request, *args, **kwargs)
  33         # not authenticated
  34         return HttpResponse( json.dumps({'result': 'access_denied'}) );
  35     return view_with_auth
  36
  37 #
  38 # View all files
  39 #
  40 @with_repo
  41 def file_list(request, repo):
  42     paginator = Paginator( repo.file_list('default'), 100);
  43     bookform = forms.BookUploadForm()
  44
  45     try:
  46         page = int(request.GET.get('page', '1'))
  47     except ValueError:
  48         page = 1
  49
  50     try:
  51         files = paginator.page(page)
  52     except (EmptyPage, InvalidPage):
  53         files = paginator.page(paginator.num_pages)
  54
  55     return direct_to_template(request, 'explorer/file_list.html', extra_context={
  56         'files': files, 'page': page, 'bookform': bookform,
  57     })
  58
  59 @permission_required('explorer.can_add_files')
  60 @with_repo
  61 def file_upload(request, repo):
  62     form = forms.BookUploadForm(request.POST, request.FILES)
  63     if form.is_valid():
  64         f = request.FILES['file']
  65
  66         def upload_action():
  67             print 'Adding file: %s' % f.name
  68             repo._add_file(f.name, f.read().decode('utf-8'))
  69             repo._commit(message="File %s uploaded from platform by %s" %
  70                 (f.name, request.user.username), user=request.user.username)
  71
  72         repo.in_branch(upload_action, 'default')
  73         return HttpResponseRedirect( reverse('editor_view', kwargs={'path': f.name}) )
  74
  75     return direct_to_template(request, 'explorer/file_upload.html',
  76         extra_context = {'form' : form} )
  77
  78 #
  79 # Edit the file
  80 #
  81
  82 @ajax_login_required
  83 @with_repo
  84 def file_xml(request, repo, path):
  85     if request.method == 'POST':
  86         errors = None
  87         form = forms.BookForm(request.POST)
  88         if form.is_valid():
  89             print 'Saving whole text.', request.user.username
  90             def save_action():
  91                 print 'In branch: ' + repo.repo[None].branch()
  92                 repo._add_file(path, form.cleaned_data['content'])
  93                 repo._commit(message=(form.cleaned_data['commit_message'] or 'Lokalny zapis platformy.'),\
  94                      user=request.user.username)
  95             try:
  96                 # wczytaj dokument z ciągu znaków -> weryfikacja
  97                 document = parser.WLDocument.from_string(form.cleaned_data['content'])
  98
  99                 #  save to user's branch
 100                 repo.in_branch(save_action, models.user_branch(request.user) );
 101             except (ParseError, ValidationError), e:
 102                 errors = [e.message]
 103
 104         if not errors:
 105             errors = dict( (field[0], field[1].as_text()) for field in form.errors.iteritems() )
 106
 107         return HttpResponse(json.dumps({'result': errors and 'error' or 'ok', 'errors': errors}));
 108
 109     form = forms.BookForm()
 110     data = repo.get_file(path, models.user_branch(request.user))
 111     form.fields['content'].initial = data
 112     return HttpResponse( json.dumps({'result': 'ok', 'content': data}) )
 113
 114 @ajax_login_required
 115 @with_repo
 116 def file_dc(request, path, repo):
 117     errors = None
 118
 119     if request.method == 'POST':
 120         form = forms.DublinCoreForm(request.POST)
 121
 122         if form.is_valid():
 123             def save_action():
 124                 file_contents = repo._get_file(path)
 125
 126                 # wczytaj dokument z repozytorium
 127                 document = parser.WLDocument.from_string(file_contents)
 128                 document.book_info.update(form.cleaned_data)
 129
 130                 print "SAVING DC"
 131
 132                 # zapisz
 133                 repo._add_file(path, document.serialize())
 134                 repo._commit( \
 135                     message=(form.cleaned_data['commit_message'] or 'Lokalny zapis platformy.'), \
 136                     user=request.user.username )
 137
 138             try:
 139                 repo.in_branch(save_action, models.user_branch(request.user) )
 140             except (ParseError, ValidationError), e:
 141                 errors = [e.message]
 142
 143         if errors is None:
 144             errors = ["Pole '%s': %s\n" % (field[0], field[1].as_text()) for field in form.errors.iteritems()]
 145
 146         return HttpResponse( json.dumps({'result': errors and 'error' or 'ok', 'errors': errors}) );
 147
 148     # this is unused currently, but may come in handy
 149     content = []
 150
 151     try:
 152         fulltext = repo.get_file(path, models.user_branch(request.user))
 153         bookinfo = dcparser.BookInfo.from_string(fulltext)
 154         content = bookinfo.to_dict()
 155     except (ParseError, ValidationError), e:
 156         errors = [e.message]
 157
 158     return HttpResponse( json.dumps({'result': errors and 'error' or 'ok',
 159         'errors': errors, 'content': content }) )
 160
 161 # Display the main editor view
 162
 163 @login_required
 164 def display_editor(request, path):
 165     return direct_to_template(request, 'explorer/editor.html', extra_context={
 166         'hash': path, 'panel_list': ['lewy', 'prawy'],
 167     })
 168
 169 # ===============
 170 # = Panel views =
 171 # ===============
 172
 173 @ajax_login_required
 174 @with_repo
 175 def xmleditor_panel(request, path, repo):
 176     form = forms.BookForm()
 177     text = repo.get_file(path, models.user_branch(request.user))
 178
 179     return direct_to_template(request, 'explorer/panels/xmleditor.html', extra_context={
 180         'fpath': path,
 181         'text': text,
 182     })
 183
 184
 185 @ajax_login_required
 186 def gallery_panel(request, path):
 187     return direct_to_template(request, 'explorer/panels/gallery.html', extra_context={
 188         'fpath': path,
 189         'form': forms.ImageFoldersForm(),
 190     })
 191
 192 @ajax_login_required
 193 @with_repo
 194 def htmleditor_panel(request, path, repo):
 195     user_branch = models.user_branch(request.user)
 196     try:
 197         return direct_to_template(request, 'explorer/panels/htmleditor.html', extra_context={
 198             'fpath': path,
 199             'html': html.transform(repo.get_file(path, user_branch), is_file=False),
 200         })
 201     except (ParseError, ValidationError), e:
 202         return direct_to_template(request, 'explorer/panels/parse_error.html', extra_context={
 203             'fpath': path, 'exception_type': type(e).__name__, 'exception': e, 'panel_name': 'Edytor HTML'})
 204
 205 @ajax_login_required
 206 @with_repo
 207 def dceditor_panel(request, path, repo):
 208     user_branch = models.user_branch(request.user)
 209
 210     try:
 211         doc_text = repo.get_file(path, user_branch)
 212
 213         document = parser.WLDocument.from_string(doc_text)
 214         form = forms.DublinCoreForm(info=document.book_info)
 215
 216         return direct_to_template(request, 'explorer/panels/dceditor.html', extra_context={
 217             'fpath': path,
 218             'form': form,
 219         })
 220     except (ParseError, ValidationError), e:
 221         return direct_to_template(request, 'explorer/panels/parse_error.html', extra_context={
 222             'fpath': path, 'exception_type': type(e).__name__, 'exception': e,
 223             'panel_name': 'Edytor DublinCore'})
 224
 225 # =================
 226 # = Utility views =
 227 # =================
 228 @ajax_login_required
 229 def folder_images(request, folder):
 230     return direct_to_template(request, 'explorer/folder_images.html', extra_context={
 231         'images': models.get_images_from_folder(folder),
 232     })
 233
 234
 235 def _add_references(message, issues):
 236     return message + " - " + ", ".join(map(lambda issue: "Refs #%d" % issue['id'], issues))
 237
 238 def _get_issues_for_file(path):
 239     if not path.endswith('.xml'):
 240         raise ValueError('Path must end with .xml')
 241
 242     book_id = path[:-4]
 243     uf = None
 244
 245     try:
 246         uf = urllib2.urlopen(settings.REDMINE_URL + 'publications/issues/%s.json' % book_id)
 247         return json.loads(uf.read())
 248     except urllib2.HTTPError:
 249         return []
 250     finally:
 251         if uf: uf.close()
 252
 253
 254 # =================
 255 # = Pull requests =
 256 # =================
 257 def pull_requests(request):
 258     return direct_to_template(request, 'manager/pull_request.html', extra_context = {
 259         'objects': models.PullRequest.objects.all()} )