c41edd380d38e01420e3ea217ce1dbee8e98c1a8
[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
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     })
88
89
90 @require_GET
91 @normalized_name
92 def editor_readonly(request, name, template_name='wiki/document_details_readonly.html'):
93     name = normalize_name(name)
94     storage = getstorage()
95
96     try:
97         revision = request.GET['revision']
98         document = storage.get(name, revision)
99     except (KeyError, DocumentNotFound) as e:
100         raise http.Http404
101
102     access_time = datetime.now()
103     last_documents = request.session.get("wiki_last_docs", {})
104     last_documents[name] = access_time
105
106     if len(last_documents) > MAX_LAST_DOCS:
107         oldest_key = min(last_documents, key=last_documents.__getitem__)
108         del last_documents[oldest_key]
109     request.session['wiki_last_docs'] = last_documents
110
111     return direct_to_template(request, template_name, extra_context={
112         'document': document,
113         'document_name': document.name,
114         'document_info': dict(document.info(), readonly=True),
115         'document_meta': document.meta,
116     })
117
118
119 @normalized_name
120 def create_missing(request, name):
121     storage = getstorage()
122
123     if request.method == "POST":
124         form = DocumentCreateForm(request.POST, request.FILES)
125         if form.is_valid():
126             doc = storage.create_document(
127                 id=form.cleaned_data['id'],
128                 text=form.cleaned_data['text'],
129             )
130
131             return http.HttpResponseRedirect(reverse("wiki_details", args=[doc.name]))
132     else:
133         form = DocumentCreateForm(initial={
134                 "id": name.replace(" ", "_"),
135                 "title": name.title(),
136         })
137
138     return direct_to_template(request, "wiki/document_create_missing.html", extra_context={
139         "document_name": name,
140         "form": form,
141     })
142
143
144 @never_cache
145 @normalized_name
146 def text(request, name):
147     storage = getstorage()
148
149     if request.method == 'POST':
150         form = DocumentTextSaveForm(request.POST, prefix="textsave")
151
152         if form.is_valid():
153             revision = form.cleaned_data['parent_revision']
154
155             document = storage.get_or_404(name, revision)
156             document.text = form.cleaned_data['text']
157
158             comment = form.cleaned_data['comment']
159
160             if form.cleaned_data['stage_completed']:
161                 comment += '\n#stage-finished: %s\n' % form.cleaned_data['stage_completed']
162
163             author = "%s <%s>" % (form.cleaned_data['author_name'], form.cleaned_data['author_email'])
164
165             storage.put(document, author=author, comment=comment, parent=revision)
166             document = storage.get(name)
167
168             return JSONResponse({
169                 'text': document.plain_text if revision != document.revision else None,
170                 'meta': document.meta(),
171                 'revision': document.revision,
172             })
173         else:
174             return JSONFormInvalid(form)
175     else:
176         revision = request.GET.get("revision", None)
177
178         try:
179             try:
180                 revision = revision and int(revision)
181                 logger.info("Fetching %s", revision)
182                 document = storage.get(name, revision)
183             except ValueError:
184                 # treat as a tag
185                 logger.info("Fetching tag %s", revision)
186                 document = storage.get_by_tag(name, revision)
187         except DocumentNotFound:
188             raise http.Http404
189
190         return JSONResponse({
191             'text': document.plain_text,
192             'meta': document.meta(),
193             'revision': document.revision,
194         })
195
196
197 @never_cache
198 @normalized_name
199 @require_POST
200 def revert(request, name):
201     storage = getstorage()
202     revision = request.POST['target_revision']
203
204     try:
205         document = storage.revert(name, revision)
206
207         return JSONResponse({
208             'text': document.plain_text if revision != document.revision else None,
209             'meta': document.meta(),
210             'revision': document.revision,
211         })
212     except DocumentNotFound:
213         raise http.Http404
214
215 @never_cache
216 def gallery(request, directory):
217     try:
218         base_url = ''.join((
219                         smart_unicode(settings.MEDIA_URL),
220                         smart_unicode(settings.FILEBROWSER_DIRECTORY),
221                         smart_unicode(directory)))
222
223         base_dir = os.path.join(
224                     smart_unicode(settings.MEDIA_ROOT),
225                     smart_unicode(settings.FILEBROWSER_DIRECTORY),
226                     smart_unicode(directory))
227
228         def map_to_url(filename):
229             return "%s/%s" % (base_url, smart_unicode(filename))
230
231         def is_image(filename):
232             return os.path.splitext(f)[1].lower() in (u'.jpg', u'.jpeg', u'.png')
233
234         images = [map_to_url(f) for f in map(smart_unicode, os.listdir(base_dir)) if is_image(f)]
235         images.sort()
236         return JSONResponse(images)
237     except (IndexError, OSError) as e:
238         logger.exception("Unable to fetch gallery")
239         raise http.Http404
240
241
242 @never_cache
243 @normalized_name
244 def diff(request, name):
245     storage = getstorage()
246
247     revA = int(request.GET.get('from', 0))
248     revB = int(request.GET.get('to', 0))
249
250     if revA > revB:
251         revA, revB = revB, revA
252
253     if revB == 0:
254         revB = None
255
256     docA = storage.get_or_404(name, int(revA))
257     docB = storage.get_or_404(name, int(revB))
258
259     return http.HttpResponse(nice_diff.html_diff_table(docA.plain_text.splitlines(),
260                                          docB.plain_text.splitlines(), context=3))
261
262
263 @never_cache
264 @normalized_name
265 def history(request, name):
266     storage = getstorage()
267
268     # TODO: pagination
269     changesets = list(storage.history(name))
270
271     return JSONResponse(changesets)
272
273
274 @require_POST
275 @ajax_require_permission('wiki.can_change_tags')
276 def add_tag(request, name):
277     name = normalize_name(name)
278     storage = getstorage()
279
280     form = DocumentTagForm(request.POST, prefix="addtag")
281     if form.is_valid():
282         doc = storage.get_or_404(form.cleaned_data['id'])
283         doc.add_tag(tag=form.cleaned_data['tag'],
284                     revision=form.cleaned_data['revision'],
285                     author=request.user.username)
286         return JSONResponse({"message": _("Tag added")})
287     else:
288         return JSONFormInvalid(form)
289
290
291 @require_POST
292 @ajax_require_permission('wiki.can_publish')
293 def publish(request, name):
294     name = normalize_name(name)
295
296     storage = getstorage()
297     document = storage.get_by_tag(name, "ready_to_publish")
298
299     api = wlapi.WLAPI(**settings.WL_API_CONFIG)
300
301     try:
302         return JSONResponse({"result": api.publish_book(document)})
303     except wlapi.APICallException, e:
304         return JSONServerError({"message": str(e)})