b57347c27e8f20c326402569e3c9d0a5faa107c5
[redakcja.git] / apps / wiki / views.py
1 import os
2 import functools
3 import logging
4 logger = logging.getLogger("fnp.wiki")
5
6 from django.conf import settings
7
8 from django.views.generic.simple import direct_to_template
9 from django.views.decorators.http import require_POST, require_GET
10 from django.core.urlresolvers import reverse
11 from wiki.helpers import (JSONResponse, JSONFormInvalid, JSONServerError,
12                 ajax_require_permission, recursive_groupby)
13 from django import http
14
15 from wiki.models import getstorage, DocumentNotFound, normalize_name, split_name, join_name, Theme
16 from wiki.forms import DocumentTextSaveForm, DocumentTagForm, DocumentCreateForm
17 from datetime import datetime
18 from django.utils.encoding import smart_unicode
19 from django.utils.translation import ugettext_lazy as _
20
21
22 #
23 # Quick hack around caching problems, TODO: use ETags
24 #
25 from django.views.decorators.cache import never_cache
26
27 import wlapi
28 import nice_diff
29 import operator
30
31 MAX_LAST_DOCS = 10
32
33
34 def normalized_name(view):
35
36     @functools.wraps(view)
37     def decorated(request, name, *args):
38         normalized = normalize_name(name)
39         logger.debug('View check %r -> %r', name, normalized)
40
41         if normalized != name:
42             return http.HttpResponseRedirect(
43                         reverse('wiki_' + view.__name__, kwargs={'name': normalized}))
44
45         return view(request, name, *args)
46
47     return decorated
48
49
50 @never_cache
51 def document_list(request):
52     return direct_to_template(request, 'wiki/document_list.html', extra_context={
53         'docs': getstorage().all(),
54         'last_docs': sorted(request.session.get("wiki_last_docs", {}).items(),
55                         key=operator.itemgetter(1), reverse=True),
56     })
57
58
59 @never_cache
60 @normalized_name
61 def editor(request, name, template_name='wiki/document_details.html'):
62     storage = getstorage()
63
64     try:
65         document = storage.get(name)
66     except DocumentNotFound:
67         return http.HttpResponseRedirect(reverse("wiki_create_missing", args=[name]))
68
69     access_time = datetime.now()
70     last_documents = request.session.get("wiki_last_docs", {})
71     last_documents[name] = access_time
72
73     if len(last_documents) > MAX_LAST_DOCS:
74         oldest_key = min(last_documents, key=last_documents.__getitem__)
75         del last_documents[oldest_key]
76     request.session['wiki_last_docs'] = last_documents
77
78     return direct_to_template(request, template_name, extra_context={
79         'document': document,
80         'document_name': document.name,
81         'document_info': document.info,
82         'document_meta': document.meta,
83         'forms': {
84             "text_save": DocumentTextSaveForm(prefix="textsave"),
85             "add_tag": DocumentTagForm(prefix="addtag"),
86         },
87         'REDMINE_URL': settings.REDMINE_URL,
88     })
89
90
91 @require_GET
92 @normalized_name
93 def editor_readonly(request, name, template_name='wiki/document_details_readonly.html'):
94     name = normalize_name(name)
95     storage = getstorage()
96
97     try:
98         revision = request.GET['revision']
99         document = storage.get(name, revision)
100     except (KeyError, DocumentNotFound):
101         raise http.Http404
102
103     access_time = datetime.now()
104     last_documents = request.session.get("wiki_last_docs", {})
105     last_documents[name] = access_time
106
107     if len(last_documents) > MAX_LAST_DOCS:
108         oldest_key = min(last_documents, key=last_documents.__getitem__)
109         del last_documents[oldest_key]
110     request.session['wiki_last_docs'] = last_documents
111
112     return direct_to_template(request, template_name, extra_context={
113         'document': document,
114         'document_name': document.name,
115         'document_info': dict(document.info(), readonly=True),
116         'document_meta': document.meta,
117         'REDMINE_URL': settings.REDMINE_URL,
118     })
119
120
121 @normalized_name
122 def create_missing(request, name):
123     storage = getstorage()
124
125     if request.method == "POST":
126         form = DocumentCreateForm(request.POST, request.FILES)
127         if form.is_valid():
128             doc = storage.create_document(
129                 id=form.cleaned_data['id'],
130                 text=form.cleaned_data['text'],
131             )
132
133             return http.HttpResponseRedirect(reverse("wiki_details", args=[doc.name]))
134     else:
135         form = DocumentCreateForm(initial={
136                 "id": name.replace(" ", "_"),
137                 "title": name.title(),
138         })
139
140     return direct_to_template(request, "wiki/document_create_missing.html", extra_context={
141         "document_name": name,
142         "form": form,
143     })
144
145
146 @never_cache
147 @normalized_name
148 def text(request, name):
149     storage = getstorage()
150
151     if request.method == 'POST':
152         form = DocumentTextSaveForm(request.POST, prefix="textsave")
153         if form.is_valid():
154             revision = form.cleaned_data['parent_revision']
155             document = storage.get_or_404(name, revision)          
156             document.text = form.cleaned_data['text']
157             comment = form.cleaned_data['comment']
158             if form.cleaned_data['stage_completed']:        
159                 comment += '\n#stage-finished: %s\n' % form.cleaned_data['stage_completed']         
160             if request.user.is_authenticated():
161                 author_name = request.user
162                 author_email = request.user.email
163             else:
164                 author_name = form.cleaned_data['author_name']
165                 author_email = form.cleaned_data['author_email']
166             author = "%s <%s>" % (author_name, author_email)
167             storage.put(document, author=author, comment=comment, parent=revision)           
168             document = storage.get(name)          
169             return JSONResponse({
170                 'text': document.plain_text if revision != document.revision else None,
171                 'meta': document.meta(),
172                 'revision': document.revision,
173             })
174         else:
175             return JSONFormInvalid(form)
176     else:
177         revision = request.GET.get("revision", None)
178
179         try:
180             try:
181                 revision = revision and int(revision)
182                 logger.info("Fetching %s", revision)
183                 document = storage.get(name, revision)
184             except ValueError:
185                 # treat as a tag
186                 logger.info("Fetching tag %s", revision)
187                 document = storage.get_by_tag(name, revision)
188         except DocumentNotFound:
189             raise http.Http404
190
191         return JSONResponse({
192             'text': document.plain_text,
193             'meta': document.meta(),
194             'revision': document.revision,
195         })
196
197
198 @never_cache
199 @normalized_name
200 @require_POST
201 def revert(request, name):
202     storage = getstorage()
203     revision = request.POST['target_revision']
204
205     try:
206         document = storage.revert(name, revision)
207
208         return JSONResponse({
209             'text': document.plain_text if revision != document.revision else None,
210             'meta': document.meta(),
211             'revision': document.revision,
212         })
213     except DocumentNotFound:
214         raise http.Http404
215
216 @never_cache
217 def gallery(request, directory):
218     try:
219         base_url = ''.join((
220                         smart_unicode(settings.MEDIA_URL),
221                         smart_unicode(settings.FILEBROWSER_DIRECTORY),
222                         smart_unicode(directory)))
223
224         base_dir = os.path.join(
225                     smart_unicode(settings.MEDIA_ROOT),
226                     smart_unicode(settings.FILEBROWSER_DIRECTORY),
227                     smart_unicode(directory))
228
229         def map_to_url(filename):
230             return "%s/%s" % (base_url, smart_unicode(filename))
231
232         def is_image(filename):
233             return os.path.splitext(f)[1].lower() in (u'.jpg', u'.jpeg', u'.png')
234
235         images = [map_to_url(f) for f in map(smart_unicode, os.listdir(base_dir)) if is_image(f)]
236         images.sort()
237         return JSONResponse(images)
238     except (IndexError, OSError):
239         logger.exception("Unable to fetch gallery")
240         raise http.Http404
241
242
243 @never_cache
244 @normalized_name
245 def diff(request, name):
246     storage = getstorage()
247
248     revA = int(request.GET.get('from', 0))
249     revB = int(request.GET.get('to', 0))
250
251     if revA > revB:
252         revA, revB = revB, revA
253
254     if revB == 0:
255         revB = None
256
257     docA = storage.get_or_404(name, int(revA))
258     docB = storage.get_or_404(name, int(revB))
259
260     return http.HttpResponse(nice_diff.html_diff_table(docA.plain_text.splitlines(),
261                                          docB.plain_text.splitlines(), context=3))
262
263
264 @never_cache
265 @normalized_name
266 def history(request, name):
267     storage = getstorage()
268
269     # TODO: pagination
270     changesets = list(storage.history(name))
271
272     return JSONResponse(changesets)
273
274
275 @require_POST
276 @ajax_require_permission('wiki.can_change_tags')
277 def add_tag(request, name):
278     name = normalize_name(name)
279     storage = getstorage()
280
281     form = DocumentTagForm(request.POST, prefix="addtag")
282     if form.is_valid():
283         doc = storage.get_or_404(form.cleaned_data['id'])
284         doc.add_tag(tag=form.cleaned_data['tag'],
285                     revision=form.cleaned_data['revision'],
286                     author=request.user.username)
287         return JSONResponse({"message": _("Tag added")})
288     else:
289         return JSONFormInvalid(form)
290
291
292 @require_POST
293 @ajax_require_permission('wiki.can_publish')
294 def publish(request, name):
295     name = normalize_name(name)
296
297     storage = getstorage()
298     document = storage.get_by_tag(name, "ready_to_publish")
299
300     api = wlapi.WLAPI(**settings.WL_API_CONFIG)
301
302     try:
303         return JSONResponse({"result": api.publish_book(document)})
304     except wlapi.APICallException, e:
305         return JSONServerError({"message": str(e)})
306
307
308 def themes(request):
309     prefix = request.GET.get('q', '')
310     return http.HttpResponse('\n'.join([str(t) for t in Theme.objects.filter(name__istartswith=prefix)]))