/
dokunode.py
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/
dokunode.py
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import logging
from phpserialize import serialize, unserialize
__author__ = 'mich'
class DokuFile(object):
"""
Represents a data/**/*.* file.
"""
#: special negative size value to mark a missing file
MISSING = -1
def __init__(self, size):
self.size = size
def isMissing(self):
return self.size < 0
class DokuNodeFile(DokuFile):
"""
Represents a data/**/*.* file which
is associated to a `DokuNode` (`DokuPage` or `DokuMedia`)
and is further characterized by a timestamp (:py:attr:`date`).
"""
def __init__(self, node, size):
super().__init__(size)
self.node = node
class DokuRevision(DokuNodeFile):
"""
Represents a data/*attic/**/*.* file.
It is associated to a `DokuNode` (`DokuPage` or `DokuMedia`)
and is further characterized by a timestamp (:py:attr:`date`).
"""
def __init__(self, node, date, size):
super().__init__(node, size)
self.date = date
self.meta = None
def persist2db(self, c, node_id):
if self.meta:
c.execute('''
INSERT INTO revisions (node_id, time, size,
mode, user, name, ip, summary, extra)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
''', (node_id, self.date, self.size,
self.meta['mode'],
self.meta['user'],
self.meta['name'],
self.meta['ip'],
self.meta['summary'],
self.meta['extra']
))
else:
c.execute('''
INSERT INTO revisions (node_id, time, size)
VALUES (?, ?, ?)
''', (node_id, self.date, self.size))
def setMetaFields(self, dict):
"""
example: {'mode': 'E', 'user': 'rockyroad', 'name': 'cr:27-01-2013',
'ip': '78.243.149.12', 'extra': '', 'summary': 'Ajout des notes de Jacqueline'}
"""
self.meta = dict
logging.debug(" Revision fields: %s", repr(self.meta))
class DokuIndexed(DokuNodeFile):
"""
Represents a data/meta/**/*.indexed file.
"""
pass
class DokuChanges(DokuNodeFile):
"""
Represents a data/meta/**/*.changes file.
"""
pass
class DokuMeta(DokuNodeFile):
"""
Represents a data/meta/**/*.meta file.
"""
pass
class DokuNode(DokuFile):
"""
This is a base class for dokuwiki browsable objects, a page or media object.
Element of a given `DokuNamespace`, it carries history, meta and indexing information.
"""
def __init__(self, ns, name, size):
super().__init__(size)
self.ns = ns
self.name = name
self.revisions = {}
self.sz_changes = None
self.sz_meta = None
self.sz_indexed = None
self.meta = None
def isMissing(self):
return self.size < 0
def addRevision(self, date, size):
assert(date not in self.revisions)
rev = DokuRevision(self, date, size)
self.revisions[date] = rev
return rev
def getRevision(self, date):
if not date in self.revisions:
logging.warning("Revision %s not found for %s", date, self.getFullname())
rev = self.addRevision(date, DokuFile.MISSING)
else:
rev = self.revisions[date]
return rev
def setChanges(self, text):
assert self.sz_changes is None
self.sz_changes = DokuChanges(self, len(text))
for line in text.splitlines():
fields = line.split("\t")
date = fields[0]
z = zip(('ip', 'mode', 'name', 'user', 'summary', 'extra', 'flags'), fields[1:])
rev = self.getRevision(date)
rev.setMetaFields(dict(z))
def setIndexed(self, text):
assert self.sz_indexed is None
self.sz_indexed = DokuIndexed(self, len(text))
def setMeta(self, text):
assert self.sz_meta is None
self.sz_meta = DokuMeta(self, len(text))
try:
self.meta = unserialize(text.encode(), decode_strings=True)
logging.info(repr(self.meta))
except Exception as e:
logging.error(e)
logging.info(text)
self.meta = text
raise e
def summary(self):
print(" - [%s] %s - %d bytes - %d revisions : %s" % (
self.__class__.__name__, self.name, self.size, self.getRevCount(), 'MISSING' if self.isMissing() else ''))
def getRevCount(self):
return len(self.revisions)
def persist2db(self, c, ns_id):
sz_changes = self.sz_changes.size if self.sz_changes else self.MISSING
sz_indexed = self.sz_indexed.size if self.sz_indexed else self.MISSING
sz_meta = self.sz_meta.size if self.sz_meta else self.MISSING
c.execute('''
INSERT INTO nodes (type, ns_id, name, size,
sz_changes, sz_indexed, sz_meta, meta)
VALUES (?, ?, ?, ?, ?, ?, ?, ?)
''', (self.__class__.__name__, ns_id, self.name, self.size,
sz_changes, sz_indexed, sz_meta, serialize(self.meta)
))
node_id = c.lastrowid
for date, rev in self.revisions.items():
rev.persist2db(c, node_id)
def getFullname(self):
return self.ns.getFullName() + self.ns.sep + self.name
class DokuPage(DokuNode):
def __init__(self, ns, name, size):
DokuNode.__init__(self, ns, name, size)
logging.debug("Page: %s:%s", ns.name, name)
class DokuMedia(DokuNode):
def __init__(self, ns, name, size):
DokuNode.__init__(self, ns, name, size)
logging.debug("Media: %s:%s", ns.name, name)
if __name__ == "__main__":
import doctest
doctest.testmod(verbose=True)