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
   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     latest_default = repo.repo.branchtags()['default']
  44     files = list( repo.repo[latest_default] )
  45     bookform = forms.BookUploadForm()
  46
  47     return direct_to_template(request, 'explorer/file_list.html', extra_context={
  48         'files': files, 'bookform': bookform,
  49     })
  50
  51 @permission_required('explorer.can_add_files')
  52 @with_repo
  53 def file_upload(request, repo):
  54     other_errors = []
  55     if request.method == 'POST':
  56         form = forms.BookUploadForm(request.POST, request.FILES)
  57         if form.is_valid():
  58             try:
  59                 # prepare the data
  60                 f = request.FILES['file']
  61                 decoded = f.read().decode('utf-8')
  62
  63                 def upload_action():
  64                     print 'Adding file: %s' % f.name
  65                     repo._add_file(f.name, decoded.encode('utf-8') )
  66                     repo._commit(
  67                         message="File %s uploaded from platform by %s" %\
  68                             (f.name, request.user.username), \
  69                         user=request.user.username \
  70                     )
  71
  72                     # end of upload
  73
  74                 repo.in_branch(upload_action, 'default')
  75
  76                 # if everything is ok, redirect to the editor
  77                 return HttpResponseRedirect( reverse('editor_view',
  78                         kwargs={'path': f.name}) )
  79
  80             except hg.RepositoryException, e:
  81                 other_errors.append(u'Błąd repozytorium: ' + unicode(e) )
  82             except UnicodeDecodeError, e:
  83                 other_errors.append(u'Niepoprawne kodowanie pliku: ' + e.reason \
  84                  + u'. Żądane kodowanie: ' + e.encoding)
  85         # invalid form
  86
  87     # get
  88     form = forms.BookUploadForm()
  89     return direct_to_template(request, 'explorer/file_upload.html',
  90         extra_context = {'form' : form, 'other_errors': other_errors})
  91
  92 #
  93 # Edit the file
  94 #
  95
  96 @ajax_login_required
  97 @with_repo
  98 def file_xml(request, repo, path):
  99     if request.method == 'POST':
 100         errors = None
 101         warnings = None
 102         form = forms.BookForm(request.POST)
 103         if form.is_valid():
 104             print 'Saving whole text.', request.user.username
 105             try:
 106                 # encode it back to UTF-8, so we can put it into repo
 107                 encoded_data = form.cleaned_data['content'].encode('utf-8')
 108
 109                 def save_action():
 110                     repo._add_file(path, encoded_data)
 111                     repo._commit(message=(form.cleaned_data['commit_message'] or 'Lokalny zapis platformy.'),\
 112                          user=request.user.username)
 113
 114                 try:
 115                     # wczytaj dokument z ciągu znaków -> weryfikacja
 116                     document = parser.WLDocument.from_string(form.cleaned_data['content'])
 117                 except (ParseError, ValidationError), e:
 118                     warnings = [u'Niepoprawny dokument XML: ' + unicode(e.message)]
 119
 120                 #  save to user's branch
 121                 repo.in_branch(save_action, models.user_branch(request.user) );
 122             except UnicodeDecodeError, e:
 123                 errors = [u'Błąd kodowania danych przed zapisem: ' + unicode(e.message)]
 124             except RepositoryException, e:
 125                 errors = [u'Błąd repozytorium: ' + unicode(e.message)]
 126
 127         if not errors:
 128             errors = dict( (field[0], field[1].as_text()) for field in form.errors.iteritems() )
 129
 130         return HttpResponse( json.dumps({'result': errors and 'error' or 'ok',
 131             'errors': errors, 'warnings': warnings}) );
 132
 133     form = forms.BookForm()
 134     data = repo.get_file(path, models.user_branch(request.user))
 135     form.fields['content'].initial = data
 136     return HttpResponse( json.dumps({'result': 'ok', 'content': data}) )
 137
 138 @ajax_login_required
 139 @with_repo
 140 def file_dc(request, path, repo):
 141     errors = None
 142
 143     if request.method == 'POST':
 144         form = forms.DublinCoreForm(request.POST)
 145
 146         if form.is_valid():
 147             def save_action():
 148                 file_contents = repo._get_file(path)
 149
 150                 # wczytaj dokument z repozytorium
 151                 document = parser.WLDocument.from_string(file_contents)
 152                 document.book_info.update(form.cleaned_data)
 153
 154                 print "SAVING DC"
 155
 156                 # zapisz
 157                 repo._write_file(path, document.serialize())
 158                 repo._commit( \
 159                     message=(form.cleaned_data['commit_message'] or 'Lokalny zapis platformy.'), \
 160                     user=request.user.username )
 161
 162             try:
 163                 repo.in_branch(save_action, models.user_branch(request.user) )
 164             except (ParseError, ValidationError), e:
 165                 errors = [e.message]
 166
 167         if errors is None:
 168             errors = ["Pole '%s': %s\n" % (field[0], field[1].as_text()) for field in form.errors.iteritems()]
 169
 170         return HttpResponse( json.dumps({'result': errors and 'error' or 'ok', 'errors': errors}) );
 171
 172     # this is unused currently, but may come in handy
 173     content = []
 174
 175     try:
 176         fulltext = repo.get_file(path, models.user_branch(request.user))
 177         bookinfo = dcparser.BookInfo.from_string(fulltext)
 178         content = bookinfo.to_dict()
 179     except (ParseError, ValidationError), e:
 180         errors = [e.message]
 181
 182     return HttpResponse( json.dumps({'result': errors and 'error' or 'ok',
 183         'errors': errors, 'content': content }) )
 184
 185 # Display the main editor view
 186
 187 @login_required
 188 @with_repo
 189 def display_editor(request, path, repo):
 190
 191     if not repo.file_exists(path, models.user_branch(request.user)):
 192         try:
 193             data = repo.get_file(path, 'default')
 194             print type(data)
 195
 196             def new_file():
 197                 repo._add_file(path, data)
 198                 repo._commit(message='File import from default branch',
 199                     user=request.user.username)
 200
 201             repo.in_branch(new_file, models.user_branch(request.user) )
 202         except hg.RepositoryException, e:
 203             return direct_to_template(request, 'explorer/file_unavailble.html',\
 204                 extra_context = { 'path': path, 'error': e })
 205
 206     return direct_to_template(request, 'explorer/editor.html', extra_context={
 207         'hash': path,
 208         'panel_list': ['lewy', 'prawy'],
 209         'scriptlets': toolbar_models.Scriptlet.objects.all()
 210     })
 211
 212 # ===============
 213 # = Panel views =
 214 # ===============
 215
 216 @ajax_login_required
 217 @with_repo
 218 def xmleditor_panel(request, path, repo):
 219     text = repo.get_file(path, models.user_branch(request.user))
 220
 221     return direct_to_template(request, 'explorer/panels/xmleditor.html', extra_context={
 222         'fpath': path,
 223         'text': text,
 224     })
 225
 226
 227 @ajax_login_required
 228 def gallery_panel(request, path):
 229     return direct_to_template(request, 'explorer/panels/gallery.html', extra_context={
 230         'fpath': path,
 231         'form': forms.ImageFoldersForm(),
 232     })
 233
 234 @ajax_login_required
 235 @with_repo
 236 def htmleditor_panel(request, path, repo):
 237     user_branch = models.user_branch(request.user)
 238     try:
 239         return direct_to_template(request, 'explorer/panels/htmleditor.html', extra_context={
 240             'fpath': path,
 241             'html': html.transform(repo.get_file(path, user_branch), is_file=False),
 242         })
 243     except (ParseError, ValidationError), e:
 244         return direct_to_template(request, 'explorer/panels/parse_error.html', extra_context={
 245             'fpath': path, 'exception_type': type(e).__name__, 'exception': e, 'panel_name': 'Edytor HTML'})
 246
 247 @ajax_login_required
 248 @with_repo
 249 def dceditor_panel(request, path, repo):
 250     user_branch = models.user_branch(request.user)
 251
 252     try:
 253         doc_text = repo.get_file(path, user_branch)
 254         document = parser.WLDocument.from_string(doc_text)
 255         form = forms.DublinCoreForm(info=document.book_info)
 256         return direct_to_template(request, 'explorer/panels/dceditor.html', extra_context={
 257             'fpath': path,
 258             'form': form,
 259         })
 260     except (ParseError, ValidationError), e:
 261         return direct_to_template(request, 'explorer/panels/parse_error.html', extra_context={
 262             'fpath': path, 'exception_type': type(e).__name__, 'exception': e,
 263             'panel_name': 'Edytor DublinCore'})
 264
 265 # =================
 266 # = Utility views =
 267 # =================
 268 @ajax_login_required
 269 def folder_images(request, folder):
 270     return direct_to_template(request, 'explorer/folder_images.html', extra_context={
 271         'images': models.get_images_from_folder(folder),
 272     })
 273
 274
 275 def _add_references(message, issues):
 276     return message + " - " + ", ".join(map(lambda issue: "Refs #%d" % issue['id'], issues))
 277
 278 def _get_issues_for_file(path):
 279     if not path.endswith('.xml'):
 280         raise ValueError('Path must end with .xml')
 281
 282     book_id = path[:-4]
 283     uf = None
 284
 285     try:
 286         uf = urllib2.urlopen(settings.REDMINE_URL + 'publications/issues/%s.json' % book_id)
 287         return json.loads(uf.read())
 288     except urllib2.HTTPError:
 289         return []
 290     finally:
 291         if uf: uf.close()
 292
 293
 294 # =================
 295 # = Pull requests =
 296 # =================
 297 def pull_requests(request):
 298     return direct_to_template(request, 'manager/pull_request.html', extra_context = {
 299         'objects': models.PullRequest.objects.all()} )