X-Git-Url: https://code.communitydata.science/mediawiki_dump_tools.git/blobdiff_plain/e925ac9da10b20ab4ef949263887a1f9158e805f..0c2d72b881b174621ef811a7c8cef4e5c1103e97:/wikiq diff --git a/wikiq b/wikiq index e693cd2..f8e5fd6 100755 --- a/wikiq +++ b/wikiq @@ -1,9 +1,9 @@ -#!/usr/bin/env python3 + #!/usr/bin/env python3 # original wikiq headers are: title articleid revid date_time anon # editor editor_id minor text_size text_entropy text_md5 reversion # additions_size deletions_size - +import pdb import argparse import sys import os, os.path @@ -13,96 +13,226 @@ from subprocess import Popen, PIPE from collections import deque from hashlib import sha1 -from mw.xml_dump import Iterator -from mw.lib import persistence -from mw.lib import reverts +from mwxml import Dump, Page + +from deltas.tokenizers import wikitext_split +from mwdiffs.utilities import dump2diffs +import mwpersistence +from mwpersistence.state import Version, apply_opdocs, apply_operations, persist_revision_once + +from mwpersistence import Token +from mwpersistence.utilities import diffs2persistence +import mwreverts from urllib.parse import quote + +from deltas import SequenceMatcher +from deltas import SegmentMatcher TO_ENCODE = ('title', 'editor') PERSISTENCE_RADIUS=7 +# this is a simple override of mwpersistence.DiffState that doesn't do anything special for reverts. +class WikiqDiffState(mwpersistence.DiffState): + def _update(self, text=None, checksum=None, opdocs=None, revision=None): + if checksum is None: + if text is None: + raise TypeError("Either 'text' or 'checksum' must be " + + "specified.") + else: + checksum = sha1(bytes(text, 'utf8')).hexdigest() + + current_version = Version() + + # the main difference we have is that we don't do anything special for reverts + if opdocs is not None: + transition = apply_opdocs(opdocs, self.last.tokens or []) + current_version.tokens, _, _ = transition + else: + # NOTICE: HEAVY COMPUTATION HERE!!! + # + # Diffs usually run in O(n^2) -- O(n^3) time and most + # tokenizers produce a lot of tokens. + if self.diff_processor is None: + raise RuntimeError("DiffState cannot process raw text " + + "without a diff_engine specified.") + operations, _, current_tokens = \ + self.diff_processor.process(text, token_class=Token) + + transition = apply_operations(operations, + self.last.tokens or [], + current_tokens) + current_version.tokens, _, _ = transition + + # Record persistence + persist_revision_once(current_version.tokens, revision) + + # Update last version + self.last = current_version + + # Return the tranisitoned state + return transition + +class PersistMethod: + none = 0 + sequence = 1 + segment = 2 + legacy = 3 + def calculate_persistence(tokens_added): return(sum([(len(x.revisions)-1) for x in tokens_added]), len(tokens_added)) -class WikiqIterator(): - def __init__(self, fh, collapse_user=False): - self.fh = fh - self.collapse_user = collapse_user - self.mwiterator = Iterator.from_file(self.fh) - self.__pages = self.load_pages() - - def load_pages(self): - for page in self.mwiterator: - yield WikiqPage(page, collapse_user=self.collapse_user) +class WikiqIterator(Dump): + + @classmethod + def from_file(cls, fh, collapse_user = False): + cls = super(WikiqIterator, cls).from_file(fh) + cls.fh = fh + cls.collapse_user = collapse_user + cls.namespace_map = { ns.id : ns.name for ns in + cls.site_info.namespaces } + return cls + + @classmethod + def process_item(cls, item_element, namespace_map, collapse_user = False): + if item_element.tag == "page": + return WikiqPage.from_element(item_element, namespace_map, collapse_user) + elif item_element.tag == "logitem": + return LogItem.from_element(item_element, namespace_map) + else: + raise MalformedXML("Expected to see or . " + + "Instead saw <{0}>".format(item_element.tag)) - def __iter__(self): - return self.__pages +class WikiqPage(Page): + __slots__ = ('id', 'title', 'namespace', 'redirect', + 'restrictions','collapse_user') + + @classmethod + def from_element(cls, item_element, namespace_map, collapse_user = False): + cls.prev_rev = None - def __next__(self): - return next(self._pages) + inv_namespace_map = {ns.id:name for name,ns in namespace_map.items()} + + cls = super(WikiqPage, cls).from_element(item_element, namespace_map) -class WikiqPage(): - __slots__ = ('id', 'title', 'namespace', 'redirect', - 'restrictions', 'mwpage', '__revisions', - 'collapse_user') - - def __init__(self, page, collapse_user=False): - self.id = page.id - self.title = page.title - self.namespace = page.namespace - self.redirect = page.redirect - self.restrictions = page.restrictions + # following mwxml, we assume namespace 0 in cases where + # page.namespace is inconsistent with namespace_map + # this undoes the "correction" of the namespace in mwxml - self.collapse_user = collapse_user - self.mwpage = page - self.__revisions = self.rev_list() - - def rev_list(self): - # Outline for how we want to handle collapse_user=True - # iteration rev.user prev_rev.user add prev_rev? - # 0 A None Never - # 1 A A False - # 2 B A True - # 3 A B True - # 4 A A False - # Post-loop A Always - for i, rev in enumerate(self.mwpage): - # never yield the first time - if i == 0: - if self.collapse_user: - collapsed_revs = 1 - rev.collapsed_revs = collapsed_revs + if cls.namespace not in inv_namespace_map: + cls.namespace = 0 + if cls.namespace != 0: + cls.title = ':'.join([inv_namespace_map[cls.namespace], cls.title]) - else: - if self.collapse_user: - # yield if this is the last edit in a seq by a user and reset - if not rev.contributor.user_text == prev_rev.contributor.user_text: - yield prev_rev - collapsed_revs = 1 - rev.collapsed_revs = collapsed_revs - # otherwise, add one to the counter - else: - collapsed_revs += 1 - rev.collapsed_revs = collapsed_revs - # if collapse_user is false, we always yield - else: - yield prev_rev + cls.collapse_user = collapse_user + cls.revisions = cls._Page__revisions + return cls + + @staticmethod + def _correct_sha(rev_data): + + if rev_data.deleted.text: + rev_data.text = "" + rev_data.text_chars = 0 + rev_data.sha1 = "" + rev_data.revert = "" + rev_data.reverteds = "" + + else: + if rev_data.text is None : + rev_data.text = "" + + rev_data.text_chars = len(rev_data.text) + + if hasattr(rev_data,"sha1") and rev_data.sha1 is not None: + text_sha1 = rev_data.sha1 + + else: + text_sha1 = sha1(bytes(rev_data.text, "utf8")).hexdigest() + + rev_data.sha1 = text_sha1 + return rev_data + + # Outline for how we want to handle collapse_user=True + # iteration rev.user prev_rev.user add prev_rev? + # 0 A None Never + # 1 A A False + # 2 B A True + # 3 A B True + # 4 A A False + # Post-loop A Always + def __find_next_revision(self): + + if self.prev_rev is None: + prev_rev = WikiqPage._correct_sha(next(self.revisions)) + self.prev_rev = prev_rev + else: + prev_rev = self.prev_rev + + if self.collapse_user: + collapsed_revs = 1 + rev.collapsed_revs = collapsed_revs + + for rev in self.revisions: + rev = WikiqPage._correct_sha(rev) + if self.collapse_user: + # yield if this is the last edit in a seq by a user and reset + # also yield if we do know who the user is + + if rev.deleted.user or prev_rev.deleted.user: + self.prev_rev = rev + if prev_rev is not None: + prev_rev.collapsed_revs = collapsed_revs + return prev_rev + + elif not rev.user.text == prev_rev.user.text: + self.prev_rev = rev + if prev_rev is not None: + prev_rev.collapsed_revs = collapsed_revs + return prev_rev + + # otherwise, add one to the counter + else: + collapsed_revs += 1 + rev.collapsed_revs = collapsed_revs + # if collapse_user is false, we always yield + else: + self.prev_rev = rev + if prev_rev is not None: + return prev_rev prev_rev = rev - # also yield the final time - yield prev_rev - def __iter__(self): - return self.__revisions + self.prev_rev = None + + if self.collapse_user: + prev_rev.collapsed_revs = collapsed_revs + return prev_rev + def __next__(self): - return next(self.__revisions) + revision = self.__find_next_revision() + revision.page = self + return revision -class WikiqParser(): + def __iter__(self): + while(True): + revision = self.__find_next_revision() + revision.page = self + yield revision + # def __iter__(self): + # return self.__revisions - def __init__(self, input_file, output_file, collapse_user=False, persist=False, urlencode=False): - + # def __next__(self): + # return next(self.__revisions) + +class WikiqParser(): + + def __init__(self, input_file, output_file, collapse_user=False, persist=None, urlencode=False, namespaces = None): + """ + Parameters: + persist : what persistence method to use. Takes a PersistMethod value + """ self.input_file = input_file self.output_file = output_file self.collapse_user = collapse_user @@ -110,23 +240,10 @@ class WikiqParser(): self.printed_header = False self.namespaces = [] self.urlencode = urlencode - - def __get_namespace_from_title(self, title): - default_ns = None - - for ns in self.namespaces: - # skip if the namespace is not defined - if ns == None: - default_ns = self.namespaces[ns] - continue - - if title.startswith(ns + ":"): - return self.namespaces[ns] - - # if we've made it this far with no matches, we return the default namespace - return default_ns - - def process(self): + if namespaces is not None: + self.namespace_filter = set(namespaces) + else: + self.namespace_filter = None # create a regex that creates the output filename # output_filename = re.sub(r'^.*/(enwiki\-\d+)\-.*p(\d+)p.*$', @@ -134,44 +251,93 @@ class WikiqParser(): # input_filename) # Construct dump file iterator - dump = WikiqIterator(self.input_file, collapse_user=self.collapse_user) + self.dump = WikiqIterator.from_file(self.input_file, self.collapse_user) + + self.diff_engine = None + + if self.persist == PersistMethod.sequence: + self.diff_engine = SequenceMatcher(tokenizer = wikitext_split) + + if self.persist == PersistMethod.segment: + self.diff_engine = SegmentMatcher(tokenizer = wikitext_split) + + # def __get_namespace_from_title(self, title): + # default_ns = None + + # for ns in self.namespaces: + # # skip if the namespace is not defined + # if ns == None: + # default_ns = self.namespaces[ns] + # continue + + # if title.startswith(ns + ":"): + # return self.namespaces[ns] - # extract list of namspaces - self.namespaces = {ns.name : ns.id for ns in dump.mwiterator.namespaces} + # # if we've made it this far with no matches, we return the default namespace + # return default_ns + # def _set_namespace(self, rev_docs): + + # for rev_data in rev_docs: + # if 'namespace' not in rev_data['page']: + # namespace = self.__get_namespace_from_title(page['title']) + # rev_data['page']['namespace'] = namespace + # yield rev_data + + def process(self): page_count = 0 rev_count = 0 - # Iterate through pages - for page in dump: - if self.persist: - state = persistence.State() + + for page in self.dump: + + # skip pages not in the namespaces we want + if self.namespace_filter is not None and page.namespace not in self.namespace_filter: + continue + + rev_detector = mwreverts.Detector() + + if self.persist != PersistMethod.none: window = deque(maxlen=PERSISTENCE_RADIUS) - rev_detector = reverts.Detector() + if self.persist == PersistMethod.sequence: + state = WikiqDiffState(SequenceMatcher(tokenizer = wikitext_split), + revert_radius=PERSISTENCE_RADIUS) + + elif self.persist == PersistMethod.segment: + state = WikiqDiffState(SegmentMatcher(tokenizer = wikitext_split), + revert_radius=PERSISTENCE_RADIUS) + + else: + from mw.lib import persistence + state = persistence.State() # Iterate through a page's revisions for rev in page: - rev_data = {'revid' : rev.id, 'date_time' : rev.timestamp.strftime('%Y-%m-%d %H:%M:%S'), 'articleid' : page.id, - 'editor_id' : "" if rev.contributor.id == None else rev.contributor.id, + 'editor_id' : "" if rev.deleted.user == True or rev.user.id is None else rev.user.id, 'title' : '"' + page.title + '"', - 'namespace' : page.namespace if page.namespace else self.__get_namespace_from_title(page.title), - 'deleted' : "TRUE" if rev.text.deleted else "FALSE" } + 'namespace' : page.namespace, + 'deleted' : "TRUE" if rev.deleted.text else "FALSE" } # if revisions are deleted, /many/ things will be missing - if rev.text.deleted: + if rev.deleted.text: rev_data['text_chars'] = "" rev_data['sha1'] = "" rev_data['revert'] = "" rev_data['reverteds'] = "" else: + # rev.text can be None if the page has no text + if not rev.text: + rev.text = "" # if text exists, we'll check for a sha1 and generate one otherwise + if rev.sha1: text_sha1 = rev.sha1 else: + text_sha1 = sha1(bytes(rev.text, "utf8")).hexdigest() rev_data['sha1'] = text_sha1 @@ -181,6 +347,7 @@ class WikiqParser(): # generate revert data revert = rev_detector.process(text_sha1, rev.id) + if revert: rev_data['revert'] = "TRUE" rev_data['reverteds'] = '"' + ",".join([str(x) for x in revert.reverteds]) + '"' @@ -191,10 +358,10 @@ class WikiqParser(): # if the fact that the edit was minor can be hidden, this might be an issue rev_data['minor'] = "TRUE" if rev.minor else "FALSE" - if rev.contributor.user_text: + if not rev.deleted.user: # wrap user-defined editors in quotes for fread - rev_data['editor'] = '"' + rev.contributor.user_text + '"' - rev_data['anon'] = "TRUE" if rev.contributor.id == None else "FALSE" + rev_data['editor'] = '"' + rev.user.text + '"' + rev_data['anon'] = "TRUE" if rev.user.id == None else "FALSE" else: rev_data['anon'] = "" @@ -208,15 +375,21 @@ class WikiqParser(): #TODO missing: additions_size deletions_size # if collapse user was on, lets run that - if self.collapse_user: - rev_data['collapsed_revs'] = rev.collapsed_revs + # if self.collapse_user: + # rev_data.collapsed_revs = rev.collapsed_revs - if self.persist: - if rev.text.deleted: + if self.persist != PersistMethod.none: + if rev.deleted.text: for k in ["token_revs", "tokens_added", "tokens_removed", "tokens_window"]: old_rev_data[k] = None else: - _, tokens_added, tokens_removed = state.process(rev.text, rev.id, text_sha1) + + if self.persist != PersistMethod.legacy: + _, tokens_added, tokens_removed = state.update(rev.text, rev.id) + + else: + _, tokens_added, tokens_removed = state.process(rev.text, rev.id, text_sha1) + window.append((rev.id, rev_data, tokens_added, tokens_removed)) if len(window) == PERSISTENCE_RADIUS: @@ -236,7 +409,7 @@ class WikiqParser(): rev_count += 1 - if self.persist: + if self.persist != PersistMethod.none: # print out metadata for the last RADIUS revisions for i, item in enumerate(window): # if the window was full, we've already printed item 0 @@ -263,7 +436,7 @@ class WikiqParser(): if self.urlencode: for field in TO_ENCODE: rev_data[field] = quote(str(rev_data[field])) - + if not self.printed_header: print("\t".join([str(k) for k in sorted(rev_data.keys())]), file=self.output_file) self.printed_header = True @@ -310,14 +483,35 @@ parser.add_argument('-s', '--stdout', dest="stdout", action="store_true", parser.add_argument('--collapse-user', dest="collapse_user", action="store_true", help="Operate only on the final revision made by user a user within all sequences of consecutive edits made by a user. This can be useful for addressing issues with text persistence measures.") -parser.add_argument('-p', '--persistence', dest="persist", action="store_true", - help="Compute and report measures of content persistent: (1) persistent token revisions, (2) tokens added, and (3) number of revision used in computing the first measure.") +parser.add_argument('-p', '--persistence', dest="persist", default=None, const='', type=str, choices = ['','segment','sequence','legacy'], nargs='?', + help="Compute and report measures of content persistent: (1) persistent token revisions, (2) tokens added, and (3) number of revision used in computing the first measure. This may by slow. Use -p=segment for advanced persistence calculation method that is robust to content moves. This might be very slow. Use -p=legacy for legacy behavior.") parser.add_argument('-u', '--url-encode', dest="urlencode", action="store_true", help="Output url encoded text strings. This works around some data issues like newlines in editor names. In the future it may be used to output other text data.") +parser.add_argument('-n', '--namespace-include', dest="namespace_filter", type=int, action='append', + help="Id number of namspace to include. Can be specified more than once.") + + + args = parser.parse_args() +# set persistence method + +if args.persist is None: + persist = PersistMethod.none +elif args.persist == "segment": + persist = PersistMethod.segment +elif args.persist == "legacy": + persist = PersistMethod.legacy +else: + persist = PersistMethod.sequence + +if args.namespace_filter is not None: + namespaces = args.namespace_filter +else: + namespaces = None + if len(args.dumpfiles) > 0: for filename in args.dumpfiles: input_file = open_input_file(filename) @@ -338,9 +532,9 @@ if len(args.dumpfiles) > 0: wikiq = WikiqParser(input_file, output_file, collapse_user=args.collapse_user, - persist=args.persist, - urlencode=args.urlencode) - + persist=persist, + urlencode=args.urlencode, + namespaces = namespaces) wikiq.process() @@ -350,8 +544,10 @@ if len(args.dumpfiles) > 0: else: wikiq = WikiqParser(sys.stdin, sys.stdout, collapse_user=args.collapse_user, - persist=args.persist, - urlencode=args.urlencode) + persist=persist, + persist_legacy=args.persist_legacy, + urlencode=args.urlencode, + namespaces = namespaces) wikiq.process() # stop_words = "a,able,about,across,after,all,almost,also,am,among,an,and,any,are,as,at,be,because,been,but,by,can,cannot,could,dear,did,do,does,either,else,ever,every,for,from,get,got,had,has,have,he,her,hers,him,his,how,however,i,if,in,into,is,it,its,just,least,let,like,likely,may,me,might,most,must,my,neither,no,nor,not,of,off,often,on,only,or,other,our,own,rather,said,say,says,she,should,since,so,some,than,that,the,their,them,then,there,these,they,this,tis,to,too,twas,us,wants,was,we,were,what,when,where,which,while,who,whom,why,will,with,would,yet,you,your"