def test_cache_key(self):
""" The key must be different for different <kw> """
test_kw1 = {'MoinMoin': 'value1'}
result1 = crypto.cache_key(**test_kw1)
test_kw2 = {'Moin2': 'value2'}
result2 = crypto.cache_key(**test_kw2)
assert result1 != result2, "Expected different keys for different <kw> but got the same"
def put_member(self, name, content, content_length, expected_members):
"""
puts a new member file into a temporary tar container.
If all expected members have been put, it saves the tar container
to a new item revision.
:param name: name of the data in the container file
:param content: the data to store into the tar file (str or file-like)
:param content_length: byte-length of content (for str, None can be given)
:param expected_members: set of expected member file names
"""
if name not in expected_members:
raise StorageError("tried to add unexpected member {0!r} to container item {1!r}".format(name, self.name))
if isinstance(name, unicode):
name = name.encode('utf-8')
temp_fname = os.path.join(tempfile.gettempdir(), 'TarContainer_' +
cache_key(usage='TarContainer', name=self.name))
tf = tarfile.TarFile(temp_fname, mode='a')
ti = tarfile.TarInfo(name)
if isinstance(content, str):
if content_length is None:
content_length = len(content)
content = StringIO(content) # we need a file obj
elif not hasattr(content, 'read'):
logging.error("unsupported content object: {0!r}".format(content))
raise StorageError("unsupported content object: {0!r}".format(content))
assert content_length >= 0 # we don't want -1 interpreted as 4G-1
ti.size = content_length
tf.addfile(ti, content)
tf_members = set(tf.getnames())
tf.close()
if tf_members - expected_members:
msg = "found unexpected members in container item {0!r}".format(self.name)
logging.error(msg)
os.remove(temp_fname)
raise StorageError(msg)
if tf_members == expected_members:
# everything we expected has been added to the tar file, save the container as revision
meta = {CONTENTTYPE: self.contenttype}
data = open(temp_fname, 'rb')
self.item._save(meta, data, name=self.name, action=ACTION_SAVE, comment='')
data.close()
os.remove(temp_fname)
def _render_data_diff_raw(self, oldrev, newrev):
hash_name = HASH_ALGORITHM
cid = cache_key(usage="ImageDiff",
hash_name=hash_name,
hash_old=oldrev.meta[hash_name],
hash_new=newrev.meta[hash_name])
c = app.cache.get(cid)
if c is None:
if PIL is None:
abort(404) # TODO render user friendly error image
content_type = newrev.meta[CONTENTTYPE]
if content_type == 'image/jpeg':
output_type = 'JPEG'
elif content_type == 'image/png':
output_type = 'PNG'
elif content_type == 'image/gif':
output_type = 'GIF'
else:
raise ValueError("content_type {0!r} not supported".format(content_type))
try:
oldimage = PILImage.open(oldrev.data)
newimage = PILImage.open(newrev.data)
oldimage.load()
newimage.load()
diffimage = PILdiff(newimage, oldimage)
outfile = StringIO()
diffimage.save(outfile, output_type)
data = outfile.getvalue()
outfile.close()
headers = wikiutil.file_headers(content_type=content_type, content_length=len(data))
app.cache.set(cid, (headers, data))
except (IOError, ValueError) as err:
logging.exception("error during PILdiff: {0}".format(err.message))
abort(404) # TODO render user friendly error image
else:
# XXX TODO check ACL behaviour
headers, data = c
return Response(data, headers=headers)
def _do_get_modified(self, hash, force_attachment=False, mimetype=None):
try:
width = int(request.values.get('w'))
except (TypeError, ValueError):
width = None
try:
height = int(request.values.get('h'))
except (TypeError, ValueError):
height = None
try:
transpose = int(request.values.get('t'))
assert 1 <= transpose <= 8
except (TypeError, ValueError, AssertionError):
transpose = 1
if width or height or transpose != 1:
# resize requested, XXX check ACL behaviour! XXX
hash_name = HASH_ALGORITHM
hash_hexdigest = self.rev.meta[hash_name]
cid = cache_key(usage="ImageTransform",
hash_name=hash_name,
hash_hexdigest=hash_hexdigest,
width=width, height=height, transpose=transpose)
c = app.cache.get(cid)
if c is None:
if mimetype:
content_type = mimetype
else:
content_type = self.rev.meta[CONTENTTYPE]
size = (width or 99999, height or 99999)
content_type, data = self._transform(content_type, size=size, transpose_op=transpose)
headers = wikiutil.file_headers(content_type=content_type, content_length=len(data))
app.cache.set(cid, (headers, data))
else:
# XXX TODO check ACL behaviour
headers, data = c
return Response(data, headers=headers)
else:
return self._do_get(hash, force_attachment=force_attachment, mimetype=mimetype)
def internal_representation(self, attributes=None):
"""
Return the internal representation of a document using a DOM Tree
"""
hash_name = HASH_ALGORITHM
hash_hexdigest = self.rev.meta.get(hash_name)
if hash_hexdigest:
cid = cache_key(usage="internal_representation",
hash_name=hash_name,
hash_hexdigest=hash_hexdigest,
attrs=repr(attributes))
doc = app.cache.get(cid)
else:
# likely a non-existing item
doc = cid = None
if doc is None:
# We will see if we can perform the conversion:
# FROM_mimetype --> DOM
# if so we perform the transformation, otherwise we don't
from moin.converter import default_registry as reg
input_conv = reg.get(Type(self.contenttype), type_moin_document)
if not input_conv:
raise TypeError("We cannot handle the conversion from {0} to the DOM tree".format(self.contenttype))
smiley_conv = reg.get(type_moin_document, type_moin_document, icon='smiley')
# We can process the conversion
links = Iri(scheme='wiki', authority='', path='/' + self.name)
doc = input_conv(self.rev, self.contenttype, arguments=attributes)
# XXX is the following assuming that the top element of the doc tree
# is a moin_page.page element? if yes, this is the wrong place to do that
# as not every doc will have that element (e.g. for images, we just get
# moin_page.object, for a tar item, we get a moin_page.table):
doc.set(moin_page.page_href, unicode(links))
if self.contenttype.startswith((u'text/x.moin.wiki', u'text/x-mediawiki', u'text/x.moin.creole', )):
doc = smiley_conv(doc)
if cid:
app.cache.set(cid, doc)
return doc
def navibar(self, fqname):
"""
Assemble the navibar
:rtype: list
:returns: list of tuples (css_class, url, link_text, title)
"""
if not isinstance(fqname, CompositeName):
fqname = split_fqname(fqname)
item_name = fqname.value
current = item_name
# Process config navi_bar
items = []
for cls, endpoint, args, link_text, title in self.cfg.navi_bar:
if endpoint == "frontend.show_root":
endpoint = "frontend.show_item"
root_fqname = fqname.get_root_fqname()
default_root = app.cfg.root_mapping.get(
NAMESPACE_DEFAULT, app.cfg.default_root)
args[
'item_name'] = root_fqname.fullname if fqname.namespace != NAMESPACE_ALL else default_root
# override link_text to show untranslated <default_root> itemname or <namespace>/<default_root>
link_text = args['item_name']
elif endpoint in [
"frontend.global_history", "frontend.global_tags"
]:
args['namespace'] = fqname.namespace
elif endpoint == "frontend.index":
args['item_name'] = fqname.namespace
elif endpoint == "admin.index" and not getattr(
flaskg.user.may, SUPERUSER)():
continue
items.append((cls, url_for(endpoint, **args), link_text, title))
# Add user links to wiki links.
for text in self.user.quicklinks:
url, link_text, title = self.split_navilink(text)
items.append(('userlink', url, link_text, title))
# Add sister pages (see http://usemod.com/cgi-bin/mb.pl?SisterSitesImplementationGuide )
for sistername, sisterurl in self.cfg.sistersites:
if is_local_wiki(sistername):
items.append(('sisterwiki current', sisterurl, sistername, ''))
else:
cid = cache_key(usage="SisterSites", sistername=sistername)
sisteritems = app.cache.get(cid)
if sisteritems is None:
uo = urllib.URLopener()
uo.version = 'MoinMoin SisterItem list fetcher 1.0'
try:
sisteritems = {}
f = uo.open(sisterurl)
for line in f:
line = line.strip()
try:
item_url, item_name = line.split(' ', 1)
sisteritems[item_name.decode(
'utf-8')] = item_url
except Exception:
pass # ignore invalid lines
f.close()
app.cache.set(cid, sisteritems)
logging.info(
"Site: {0!r} Status: Updated. Pages: {1}".format(
sistername, len(sisteritems)))
except IOError as err:
(title, code, msg, headers) = err.args # code e.g. 304
logging.warning(
"Site: {0!r} Status: Not updated.".format(
sistername))
logging.exception("exception was:")
if current in sisteritems:
url = sisteritems[current]
items.append(('sisterwiki', url, sistername, ''))
return items
def atom(item_name):
# Currently atom feeds behave in the fol. way
# - Text diffs are shown in a side-by-side fashion
# - The current binary item is fully rendered in the feed
# - Image(binary)'s diff is shown using PIL
# - First item is always rendered fully
# - Revision meta(id, size and comment) is shown for parent and current revision
query = Term(WIKINAME, app.cfg.interwikiname)
if item_name:
query = And([
query,
Term(NAME_EXACT, item_name),
])
revs = list(
flaskg.storage.search(query,
idx_name=LATEST_REVS,
sortedby=[MTIME],
reverse=True,
limit=1))
if revs:
rev = revs[0]
cid = cache_key(usage="atom", revid=rev.revid, item_name=item_name)
content = app.cache.get(cid)
else:
content = None
cid = None
if content is None:
if not item_name:
title = u"{0}".format(app.cfg.sitename)
else:
title = u"{0} - {1}".format(app.cfg.sitename, item_name)
feed = AtomFeed(title=title,
feed_url=request.url,
url=request.host_url)
query = Term(WIKINAME, app.cfg.interwikiname)
if item_name:
query = And([
query,
Term(NAME_EXACT, item_name),
])
history = flaskg.storage.search(query,
idx_name=ALL_REVS,
sortedby=[MTIME],
reverse=True,
limit=100)
for rev in history:
name = rev.name
item = rev.item
this_revid = rev.meta[REVID]
previous_revid = rev.meta.get(PARENTID)
this_rev = rev
try:
hl_item = Item.create(name, rev_id=this_revid)
if previous_revid is not None:
# HTML diff for subsequent revisions
previous_rev = item[previous_revid]
content = hl_item.content._render_data_diff_atom(
previous_rev, this_rev)
else:
# full html rendering for new items
content = render_template(
'atom.html',
get='first_revision',
rev=this_rev,
content=Markup(hl_item.content._render_data()),
revision=this_revid)
content_type = 'html'
except Exception as e:
logging.exception("content rendering crashed")
content = _(u'MoinMoin feels unhappy.')
content_type = 'text'
author = get_editor_info(rev.meta, external=True)
rev_comment = rev.meta.get(COMMENT, '')
if rev_comment:
# Trim down extremely long revision comment
if len(rev_comment) > 80:
content = render_template('atom.html',
get='comment_cont_merge',
comment=rev_comment[79:],
content=Markup(content))
rev_comment = u"{0}...".format(rev_comment[:79])
feed_title = u"{0} - {1}".format(author.get(NAME, ''),
rev_comment)
else:
feed_title = u"{0}".format(author.get(NAME, ''))
if not item_name:
feed_title = u"{0} - {1}".format(name, feed_title)
feed.add(
title=feed_title,
title_type='text',
summary=content,
summary_type=content_type,
author=author,
url=url_for_item(name, rev=this_revid, _external=True),
updated=datetime.fromtimestamp(rev.meta[MTIME]),
)
content = feed.to_string()
# Hack to add XSLT stylesheet declaration since AtomFeed doesn't allow this
content = content.split("\n")
content.insert(1, render_template('atom.html', get='xml'))
content = "\n".join(content)
if cid is not None:
app.cache.set(cid, content)
return Response(content, content_type='application/atom+xml')