apps/explorer/views.py

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