def sync_file_from_dropbox(node_id, use_ust=True, callback=None):
"""
Sync file which was updated on dropbox
Arguments:
node_id: updated file
use_ust: if True, process remove in User Synchronous mode
"""
node, db_sess = _get_node(node_id)
if use_ust:
if django_settings.ASYNC_DROPBOX:
yield gen.Task(async_ust_start, node.user)
else:
ust_start(node.user)
l.info("sync_file_FROM_dropbox: '%s'" % (node.db_path, ))
try:
# Read file content from dropbox
if django_settings.ASYNC_DROPBOX:
yield_key = object()
db_sess.read_file(encode_if_unicode(node.db_path),
callback=(yield gen.Callback(yield_key)))
content = yield gen.Wait(yield_key)
else:
content = db_sess.read_file(encode_if_unicode(node.db_path))
# And save it to local storage
_save_and_convert(node, content)
# User may want to know that this file was synced
append_to_changes_list(node.user, node.db_path)
except Exception, e:
err_msg = "SYNC_file_from_dropbox: '%s' (%s)" %\
(node.db_path, e,)
l.error(err_msg)
raise MDBException("ERROR: "+err_msg)
def _save_and_convert(node, content):
"""
Helper - saves content into local file and converts to html if needed
NOTE: caller must process all exceptions
"""
# Sanity check
if not node.is_file:
l.error("save_and_convert: '%s' is not a file ?!" %
(node.srv_src, ))
return
# Store it in local copy
# TODO: use Tornado's async IO
f = open(encode_if_unicode(node.srv_src), "wb")
f.write(encode_if_unicode(content))
f.close()
l.info("save_and_convert: SRC saved '%s' (%d bytes), " %
(node.srv_src, len(content), ))
# Convert markdown to html
if os.path.splitext(node.db_path)[1] in settings.SUPPORTED_EXTS:
html = md_to_html(node, content)
# Store it on server
# TODO: use Tornado's async IO
f = open(encode_if_unicode(node.srv_html), "wb")
f.write(html.encode('utf-8'))
f.close()
l.info("save_and_convert: HTML saved '%s' (%d bytes), " %
(node.srv_html, len(html), ))
MDBTree.objects.filter(pk=node.pk).update(last_synced = datetime.utcnow())
def save_node(node_id, content, use_ust=True, callback=None):
"""
Save content into node (must be a file !)
Arguments:
node_id: node to update
content: content to write to file
use_ust: if True, process save in User Synchronous mode
"""
node, db_sess = _get_node(node_id)
l.info("save_node: %s" % (node.db_path, ))
if use_ust:
if django_settings.ASYNC_DROPBOX:
yield gen.Task(async_ust_start, node.user)
else:
ust_start(node.user)
try:
# First save to dropbox
u_content = force_unicode((smart_unicode(content)))
if django_settings.ASYNC_DROPBOX:
yield_key = object()
db_sess.write_file(encode_if_unicode(node.db_path), u_content,
callback=(yield gen.Callback(yield_key)))
ret_dict = yield gen.Wait(yield_key)
else:
ret_dict = db_sess.write_file(encode_if_unicode(node.db_path), u_content)
# Then to local storage
_save_and_convert(node, content)
except Exception, e:
err_msg = "save_node: can't save %s (%s)" %\
(node.db_path, e, )
l.error(err_msg)
raise MDBException("ERROR: "+err_msg)
def rename_node(node_id, new_filename, use_ust=True, callback=None):
"""
Rename node to new_filename
Arguments:
node_id: node to rename
new_filename: filename to remove to (can be both directory and file)
use_ust: if True, process remove in User Synchronous mode
"""
node, db_sess = _get_node(node_id)
l.info("rename_node: '%s' -> '%s'" % (node.db_path, new_filename, ))
if use_ust:
if django_settings.ASYNC_DROPBOX:
yield gen.Task(async_ust_start, node.user)
else:
ust_start(node.user)
# TODO: Dropbox exception's text contains HTML, which can't be parsed
# TODO: correctly by frontend, use Reason (part of exception dict)
try:
# First rename on dropbox
new_db_path = get_dropbox_path(os.path.split(node.db_path)[0], new_filename)
from_path = encode_if_unicode(node.db_path)
to_path = encode_if_unicode(new_db_path)
if django_settings.ASYNC_DROPBOX:
yield_key = object()
db_sess.move_file(from_path, to_path,
callback=(yield gen.Callback(yield_key)))
ret_dict = yield gen.Wait(yield_key)
else:
db_sess.db_client.file_move(from_path, to_path)
# Then on local storage
new_src = get_server_src_file_path(node.user, new_db_path)
forced_rename(node.srv_src, new_src)
new_html = get_server_html_file_path(node.user, new_db_path)
if new_html != "":
forced_rename(node.srv_html, new_html)
# And the object itself
MDBTree.objects.filter(pk=node.pk).update(
db_path = new_db_path,
srv_src = new_src,
srv_html = new_html,
)
except Exception, e:
err_msg = "rename_node: '%s' -> '%s' (%s)" %\
(node.db_path, new_filename, e,)
l.error(err_msg)
raise MDBException("ERROR: "+err_msg)
def create_new_file(parent_node_id, filename, content, use_ust=True, callback=None):
"""
Add new file TO dropbox and also to our database and to server
NOTE: filename should be just the name of the file, without any
path elements (it will be added as file in parent_node)
Arguments:
parent_node_id: dir where the file should be created
filename: name of new file
content: initial content
use_ust: if True, process remove in User Synchronous mode
"""
parent_node, db_sess = _get_node(parent_node_id)
l.info("create_new_file: '%s' in '%s' (%d bytes)" %\
(filename, parent_node.db_path, len(content), ))
if use_ust:
if django_settings.ASYNC_DROPBOX:
yield gen.Task(async_ust_start, parent_node.user)
else:
ust_start(parent_node.user)
try:
# We first create file ON dropbox and then sync it back
# to our database and server to keep the exec logic consistent
db_file_path = get_dropbox_path(parent_node.db_path, filename)
if django_settings.ASYNC_DROPBOX:
yield_key = object()
db_sess.write_file(encode_if_unicode(db_file_path), content,
callback=(yield gen.Callback(yield_key)))
ret_dict = yield gen.Wait(yield_key)
else:
ret_dict = db_sess.write_file(encode_if_unicode(db_file_path), content)
l.info("create_new_file: '%s' in '%s' DONE. Now syncing dir..." %\
(filename, parent_node.db_path, ))
if django_settings.ASYNC_DROPBOX:
yield_key = object()
add_file_from_dropbox(parent_node.id, db_file_path, datetime.utcnow(), use_ust=False,
callback=(yield gen.Callback(yield_key)))
ret_dict = yield gen.Wait(yield_key)
else:
add_file_from_dropbox(parent_node.id, db_file_path, datetime.utcnow(), use_ust=False)
except Exception, e:
err_msg = "create_new_file: '%s' in '%s' (%s)" %\
(filename, parent_node.db_path, e,)
l.error(err_msg)
raise MDBException("ERROR: "+err_msg)
def remove_node_as_file(node_id, skip_dropbox=False, use_ust=True, callback=None):
"""
Remove node (must be a file !)
Arguments:
node_id: node to remove
skip_dropbox: if True, only remove from local storage (used in sync)
use_ust: if True, process remove in User Synchronous mode
"""
node, db_sess = _get_node(node_id)
if use_ust:
if django_settings.ASYNC_DROPBOX:
yield gen.Task(async_ust_start, node.user)
else:
ust_start(node.user)
try:
# First remove from dropbox
if not skip_dropbox:
if django_settings.ASYNC_DROPBOX:
yield_key = object()
db_sess.delete_file(encode_if_unicode(node.db_path),
callback=(yield gen.Callback(yield_key)))
yield gen.Wait(yield_key)
else:
db_sess.db_client.file_delete(encode_if_unicode(node.db_path))
else:
l.info("remove_node_as_file: '%s' skipping dropbox removal" %\
(node.db_path, ))
# Then from local storage
for file in (node.srv_html, node.srv_src):
l.info("remove_node_as_file: removing '%s'" %\
(file, ))
if not os.path.exists(file):
l.info("remove_node_as_file: '%s' does not exists ?!" %\
(file, ))
else:
os.remove(file)
# Also delete treebeard node
node.delete()
except Exception, e:
err_msg = "remove_node_as_file: '%s' (%s)" %\
(node.db_path, e,)
l.error(err_msg)
raise MDBException("ERROR: "+err_msg)
def create_new_dir(parent_node_id, dir_name, use_ust=True, callback=None):
"""
Add new directory TO dropbox and also to our database and to server
NOTE: directory should be just the name of the directory, without any
path elements (it will be added in parent_node)
Arguments:
parent_node_id: dir where the new dir should be created
filename: name of new dir
use_ust: if True, process remove in User Synchronous mode
"""
parent_node, db_sess = _get_node(parent_node_id)
l.info("create_new_dir: '%s' in '%s'" %\
(dir_name, parent_node.db_path, ))
if use_ust:
if django_settings.ASYNC_DROPBOX:
yield gen.Task(async_ust_start, parent_node.user)
else:
ust_start(parent_node.user)
try:
# First save to dropbox
db_dir_path = get_dropbox_path(parent_node.db_path, dir_name)
if django_settings.ASYNC_DROPBOX:
yield_key = object()
db_sess.create_folder(encode_if_unicode(db_dir_path),
callback=(yield gen.Callback(yield_key)))
ret_dict = yield gen.Wait(yield_key)
else:
ret_dict = db_sess.db_client.file_create_folder(encode_if_unicode(db_dir_path))
l.info("create_new_dir: '%s' in '%s' DONE. Now syncing parent..." %\
(dir_name, parent_node.db_path, ))
if django_settings.ASYNC_DROPBOX:
yield_key = object()
add_dir_from_dropbox(parent_node.id, db_dir_path, use_ust=False,
callback=(yield gen.Callback(yield_key)))
yield gen.Wait(yield_key)
else:
add_dir_from_dropbox(parent_node.id, db_dir_path, use_ust=False)
except Exception, e:
err_msg = "create_new_dir: '%s' -> '%s' (%s)" %\
(dir_name, parent_node.db_path, e,)
l.error(err_msg)
raise MDBException("ERROR: "+err_msg)
def remove_node_as_dir(node_id, skip_dropbox=False, use_ust=True, callback=None):
"""
Remove node (must be a directory !)
Arguments:
node_id: node to remove
skip_dropbox: if True, only remove from local storage (used in sync)
use_ust: if True, process remove in User Synchronous mode
"""
node, db_sess = _get_node(node_id)
if use_ust:
if django_settings.ASYNC_DROPBOX:
yield gen.Task(async_ust_start, node.user)
else:
ust_start(node.user)
try:
# Remove dir from dropbox if asked
if not skip_dropbox:
# Removes dir from dropbox (recursively)
if django_settings.ASYNC_DROPBOX:
yield_key = object()
db_sess.delete_file(encode_if_unicode(node.db_path),
callback=(yield gen.Callback(yield_key)))
yield gen.Wait(yield_key)
else:
db_sess.db_client.file_delete(encode_if_unicode(node.db_path))
else:
l.info("remove_node_as_dir: '%s' skipping dropbox removal" %\
(node.db_path, ))
# Then from local storage
remove_server_dir(node.user, node.db_path)
# Go through treebeard to find and delete node's descendants
for child in node.get_children():
child.delete()
# And finally delete treebeard node
node.delete()
except Exception, e:
err_msg = "remove_node_as_dir: '%s' (%s)" %\
(node.db_path, e,)
l.error(err_msg)
raise MDBException("ERROR: "+err_msg)
def get_src_url(self): """ Figures out src url for node """ if self.is_file: #url = self.file.srv_src_file.replace(settings.NGINX_ROOT, '', 1) #url = settings.NGINX_WWW[:7]+self.user.slug+'.'+settings.NGINX_WWW[7:]+self.db_path url = settings.NGINX_WWW+'/users/'+self.user.slug+self.db_path else: url = self.db_path return encode_if_unicode(url)
def get_html_url(self): """ Figures out html url for node """ if self.is_file: # We rendered .html only for supported files path_no_ext, ext = os.path.splitext(self.db_path) if ext in settings.SUPPORTED_EXTS: #url = self.file.srv_html_file.replace(settings.NGINX_ROOT, '', 1) url = settings.NGINX_WWW[:7]+self.user.slug+'.'+settings.NGINX_WWW[7:]+path_no_ext+'.html' #url = settings.NGINX_WWW+'/users/'+self.user.slug+path_no_ext+'.html' else: url = self.get_src_url() else: url = self.db_path return encode_if_unicode(url)
def get_absolute_url(self):
""" Returns absolute url based on node type """
return ('view_node_src', (), {
'path': urllib.quote(encode_if_unicode(self.db_path.lstrip('/')),
safe=""), # "%/:=&?~#+!$,;'@()*[]"
})
def get_db_path(self): """ Returns dropbox path (actual node name) """ return encode_if_unicode(self.db_path)
def basename(self): """ Returns basename for node """ if self.db_path == '/': return '/' else: return encode_if_unicode(os.path.basename(self.db_path))
