apps/explorer/views.py

   1 import urllib2
   2 import hg
   3 from lxml import etree
   4 from librarian import html,dcparser
   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
  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         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.'), user=request.user.username)
  94
  95             print repo.in_branch(save_action, models.user_branch(request.user) );
  96             result = "ok"
  97         else:
  98             result = "error"
  99
 100         errors = dict( (field[0], field[1].as_text()) for field in form.errors.iteritems() )
 101         return HttpResponse( json.dumps({'result': result, 'errors': errors}) );
 102
 103     form = forms.BookForm()
 104     data = repo.get_file(path, models.user_branch(request.user))
 105     form.fields['content'].initial = data
 106     return HttpResponse( json.dumps({'result': 'ok', 'content': data}) )
 107
 108 @ajax_login_required
 109 @with_repo
 110 def file_dc(request, path, repo):
 111     if request.method == 'POST':
 112         form = forms.DublinCoreForm(request.POST)
 113
 114         if form.is_valid():
 115             def save_action():
 116                 file_contents = repo._get_file(path)
 117                 doc = etree.fromstring(file_contents)
 118
 119                 book_info = dcparser.BookInfo()
 120                 for name, value in form.cleaned_data.items():
 121                     if value is not None and value != '':
 122                         setattr(book_info, name, value)
 123                 rdf = etree.XML(book_info.to_xml())
 124
 125                 old_rdf = doc.getroottree().find('//{http://www.w3.org/1999/02/22-rdf-syntax-ns#}RDF')
 126                 old_rdf.getparent().remove(old_rdf)
 127                 doc.insert(0, rdf)
 128                 repo._add_file(path, etree.tostring(doc, pretty_print=True, encoding=unicode))
 129                 repo._commit(message=(form.cleaned_data['commit_message'] or 'Lokalny zapis platformy.'), user=request.user.username)
 130
 131             repo.in_branch(save_action, models.user_branch(request.user) )
 132
 133             result = "ok"
 134         else:
 135             result = "error"
 136
 137         errors = dict( (field[0], field[1].as_text()) for field in form.errors.iteritems() )
 138         return HttpResponse( json.dumps({'result': result, 'errors': errors}) );
 139
 140     fulltext = repo.get_file(path, models.user_branch(request.user))
 141     form = forms.DublinCoreForm(text=fulltext)
 142     return HttpResponse( json.dumps({'result': 'ok', 'content': fulltext}) )
 143
 144 # Display the main editor view
 145
 146 @login_required
 147 def display_editor(request, path):
 148     return direct_to_template(request, 'explorer/editor.html', extra_context={
 149         'hash': path, 'panel_list': ['lewy', 'prawy'],
 150     })
 151
 152 # ===============
 153 # = Panel views =
 154 # ===============
 155
 156 @ajax_login_required
 157 @with_repo
 158 def xmleditor_panel(request, path, repo):
 159     form = forms.BookForm()
 160     text = repo.get_file(path, models.user_branch(request.user))
 161
 162     return direct_to_template(request, 'explorer/panels/xmleditor.html', extra_context={
 163         'fpath': path,
 164         'text': text,
 165     })
 166
 167
 168 @ajax_login_required
 169 def gallery_panel(request, path):
 170     return direct_to_template(request, 'explorer/panels/gallery.html', extra_context={
 171         'fpath': path,
 172         'form': forms.ImageFoldersForm(),
 173     })
 174
 175 @ajax_login_required
 176 @with_repo
 177 def htmleditor_panel(request, path, repo):
 178     user_branch = models.user_branch(request.user)
 179     return direct_to_template(request, 'explorer/panels/htmleditor.html', extra_context={
 180         'fpath': path,
 181         'html': html.transform(repo.get_file(path, user_branch), is_file=False),
 182     })
 183
 184
 185 @ajax_login_required
 186 @with_repo
 187 def dceditor_panel(request, path, repo):
 188     user_branch = models.user_branch(request.user)
 189     text = repo.get_file(path, user_branch)
 190     form = forms.DublinCoreForm(text=text)
 191
 192     return direct_to_template(request, 'explorer/panels/dceditor.html', extra_context={
 193         'fpath': path,
 194         'form': form,
 195     })
 196
 197
 198 # =================
 199 # = Utility views =
 200 # =================
 201 @ajax_login_required
 202 def folder_images(request, folder):
 203     return direct_to_template(request, 'explorer/folder_images.html', extra_context={
 204         'images': models.get_images_from_folder(folder),
 205     })
 206
 207
 208 def _add_references(message, issues):
 209     return message + " - " + ", ".join(map(lambda issue: "Refs #%d" % issue['id'], issues))
 210
 211 def _get_issues_for_file(path):
 212     if not path.endswith('.xml'):
 213         raise ValueError('Path must end with .xml')
 214
 215     book_id = path[:-4]
 216     uf = None
 217
 218     try:
 219         uf = urllib2.urlopen(settings.REDMINE_URL + 'publications/issues/%s.json' % book_id)
 220         return json.loads(uf.read())
 221     except urllib2.HTTPError:
 222         return []
 223     finally:
 224         if uf: uf.close()
 225
 226
 227 # =================
 228 # = Pull requests =
 229 # =================
 230 def pull_requests(request):
 231     return direct_to_template(request, 'manager/pull_request.html', extra_context = {
 232         'objects': models.PullRequest.objects.all()} )