X-Git-Url: https://code.communitydata.science/mediawiki_dump_tools.git/blobdiff_plain/7db6288923361564d569b1dfb2b1922664dac5c7..d8d20f670b98507a3dea27c38e5463c1b0b2e6cd:/wikiq?ds=sidebyside diff --git a/wikiq b/wikiq index ad4d549..c2a2f12 100755 --- a/wikiq +++ b/wikiq @@ -13,27 +13,49 @@ 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 mwxml import Dump + +from deltas.tokenizers import wikitext_split +import mwpersistence import mwreverts from urllib.parse import quote TO_ENCODE = ('title', 'editor') PERSISTENCE_RADIUS=7 +from deltas import SequenceMatcher +from deltas import SegmentMatcher + +from dataclasses import dataclass +import pandas as pd +import pyarrow as pa +import pyarrow.parquet as pq + +from typing import List + +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.mwiterator = Dump.from_file(self.fh) + self.namespace_map = { ns.id : ns.name for ns in + self.mwiterator.site_info.namespaces } self.__pages = self.load_pages() def load_pages(self): for page in self.mwiterator: - yield WikiqPage(page, collapse_user=self.collapse_user) + yield WikiqPage(page, + namespace_map = self.namespace_map, + collapse_user=self.collapse_user) def __iter__(self): return self.__pages @@ -46,13 +68,19 @@ class WikiqPage(): 'restrictions', 'mwpage', '__revisions', 'collapse_user') - def __init__(self, page, collapse_user=False): + def __init__(self, page, namespace_map, collapse_user=False): self.id = page.id - self.title = page.title self.namespace = page.namespace - self.redirect = page.redirect + # following mwxml, we assume namespace 0 in cases where + # page.namespace is inconsistent with namespace_map + if page.namespace not in namespace_map: + self.title = page.title + page.namespace = 0 + if page.namespace != 0: + self.title = ':'.join([namespace_map[page.namespace], page.title]) + else: + self.title = page.title self.restrictions = page.restrictions - self.collapse_user = collapse_user self.mwpage = page self.__revisions = self.rev_list() @@ -76,7 +104,14 @@ class WikiqPage(): 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: + # also yield if we do know who the user is + + if rev.deleted.user or prev_rev.deleted.user: + yield prev_rev + collapsed_revs = 1 + rev.collapsed_revs = collapsed_revs + + elif not rev.user.text == prev_rev.user.text: yield prev_rev collapsed_revs = 1 rev.collapsed_revs = collapsed_revs @@ -89,6 +124,7 @@ class WikiqPage(): yield prev_rev prev_rev = rev + # also yield the final time yield prev_rev @@ -98,19 +134,155 @@ class WikiqPage(): def __next__(self): return next(self.__revisions) -class WikiqParser(): +class RegexPair(object): + def __init__(self, pattern, label): + self.pattern = re.compile(pattern) + self.label = label + self.has_groups = bool(self.pattern.groupindex) + if self.has_groups: + self.capture_groups = list(self.pattern.groupindex.keys()) + + def _make_key(self, cap_group): + return ("{}_{}".format(self.label, cap_group)) - def __init__(self, input_file, output_file, collapse_user=False, persist=False, urlencode=False): + def matchmake(self, content, rev_data): + temp_dict = {} + # if there are named capture groups in the regex + if self.has_groups: + + # if there are matches of some sort in this revision content, fill the lists for each cap_group + if self.pattern.search(content) is not None: + m = self.pattern.finditer(content) + matchobjects = list(m) + + for cap_group in self.capture_groups: + key = self._make_key(cap_group) + temp_list = [] + for match in matchobjects: + # we only want to add the match for the capture group if the match is not None + if match.group(cap_group) != None: + temp_list.append(match.group(cap_group)) + + # if temp_list of matches is empty just make that column None + if len(temp_list)==0: + temp_dict[key] = None + # else we put in the list we made in the for-loop above + else: + temp_dict[key] = ', '.join(temp_list) + + # there are no matches at all in this revision content, we default values to None + else: + for cap_group in self.capture_groups: + key = self._make_key(cap_group) + temp_dict[key] = None + + # there are no capture groups, we just search for all the matches of the regex + else: + #given that there are matches to be made + if type(content) in(str, bytes): + if self.pattern.search(content) is not None: + m = self.pattern.findall(content) + temp_dict[self.label] = ', '.join(m) + else: + temp_dict[self.label] = None + + # update rev_data with our new columns + rev_data.update(temp_dict) + return rev_data + +@dataclass +class RevData(): + revid: int + date_time: datetime + articleid: int + editorid: int + title: str + namespace: int + deleted: bool + text_chars: int + revert: bool + reverteds: list[bool] + sha1: str + text_chars: int + revert: bool + reverteds: list[int] + minor: bool + editor: str + anon: bool + collapsed_revs:int + token_revs:int + tokens_added:int + tokens_removed:int + tokens_window:int + +class WikiqParser(): + def __init__(self, input_file, output_file, regex_match_revision, regex_match_comment, regex_revision_label, regex_comment_label, collapse_user=False, persist=None, urlencode=False, namespaces = None, revert_radius=15, output_parquet=True, parquet_buffer_size=2000): + """ + 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 self.persist = persist self.printed_header = False self.namespaces = [] self.urlencode = urlencode + self.revert_radius = revert_radius + self.parquet_buffer = [] + self.parquet_buffer_size = parquet_buffer_size + + if namespaces is not None: + self.namespace_filter = set(namespaces) + else: + self.namespace_filter = None + + self.regex_schemas = [] + self.regex_revision_pairs = self.make_matchmake_pairs(regex_match_revision, regex_revision_label) + self.regex_comment_pairs = self.make_matchmake_pairs(regex_match_comment, regex_comment_label) + + + if output_parquet is True: + self.output_parquet = True + self.pq_writer = None + self.output_file = output_file + else: + self.output_file = open(output_file,'w') + + + def make_matchmake_pairs(self, patterns, labels): + if (patterns is not None and labels is not None) and \ + (len(patterns) == len(labels)): + result = [] + for pattern, label in zip(patterns, labels): + result.append(RegexPair(pattern, label)) + self.regex_schemas.append(pa.field(label, pa.list_(pa.string()))) + + return result + elif (patterns is None and labels is None): + return [] + else: + sys.exit('Each regular expression *must* come with a corresponding label and vice versa.') + + def matchmake(self, rev, rev_data): + rev_data = self.matchmake_revision(rev.text, rev_data) + rev_data = self.matchmake_comment(rev.comment, rev_data) + return rev_data + + def matchmake_revision(self, text, rev_data): + return self.matchmake_pairs(text, rev_data, self.regex_revision_pairs) + + def matchmake_comment(self, comment, rev_data): + return self.matchmake_pairs(comment, rev_data, self.regex_comment_pairs) + + def matchmake_pairs(self, text, rev_data, pairs): + for pair in pairs: + rev_data = pair.matchmake(text, rev_data) + return rev_data + def __get_namespace_from_title(self, title): default_ns = None @@ -126,6 +298,7 @@ class WikiqParser(): # if we've made it this far with no matches, we return the default namespace return default_ns + def process(self): # create a regex that creates the output filename @@ -137,50 +310,82 @@ class WikiqParser(): dump = WikiqIterator(self.input_file, collapse_user=self.collapse_user) # extract list of namspaces - self.namespaces = {ns.name : ns.id for ns in dump.mwiterator.namespaces} + self.namespaces = {ns.name : ns.id for ns in dump.mwiterator.site_info.namespaces} page_count = 0 rev_count = 0 + + # Iterate through pages for page in dump: - if self.persist: - state = persistence.State() + namespace = page.namespace if page.namespace is not None else self.__get_namespace_from_title(page.title) + + # skip namespaces not in the filter + if self.namespace_filter is not None: + if namespace not in self.namespace_filter: + continue + + rev_detector = mwreverts.Detector(radius = self.revert_radius) + + if self.persist != PersistMethod.none: window = deque(maxlen=PERSISTENCE_RADIUS) - rev_detector = mwreverts.Detector() + if self.persist == PersistMethod.sequence: + state = mwpersistence.DiffState(SequenceMatcher(tokenizer = wikitext_split), + revert_radius=PERSISTENCE_RADIUS) + + elif self.persist == PersistMethod.segment: + state = mwpersistence.DiffState(SegmentMatcher(tokenizer = wikitext_split), + revert_radius=PERSISTENCE_RADIUS) + + # self.persist == PersistMethod.legacy + 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, - '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" } + + # initialize rev_data + rev_data = { + 'revid':rev.id, + 'date_time' : rev.timestamp.strftime('%Y-%m-%d %H:%M:%S'), + 'articleid' : page.id, + 'editorid' : "" if rev.deleted.user == True or rev.user.id is None else rev.user.id, + 'title' : '"' + page.title + '"', + 'namespace' : namespace, + 'deleted' : "TRUE" if rev.deleted.text else "FALSE" + } + + rev_data = self.matchmake(rev, rev_data) # 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 # TODO rev.bytes doesn't work.. looks like a bug rev_data['text_chars'] = len(rev.text) - + # 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 +396,10 @@ 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'] = "" @@ -211,12 +416,18 @@ class WikiqParser(): 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 +447,7 @@ 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 @@ -250,7 +461,6 @@ class WikiqParser(): rev_data["tokens_added"] = num_tokens rev_data["tokens_removed"] = len(tokens_removed) rev_data["tokens_window"] = len(window)-(i+1) - self.print_rev_data(rev_data) page_count += 1 @@ -258,22 +468,65 @@ class WikiqParser(): print("Done: %s revisions and %s pages." % (rev_count, page_count), file=sys.stderr) + if self.output_parquet is True: + self.flush_parquet_buffer() + self.pq_writer.close() + + else: + output_file.close() + + + def write_parquet_row(self, rev_data): + if 'deleted' in rev_data.keys(): + rev_data['deleted'] = True if rev_data['deleted'] == "TRUE" else False + + if 'minor' in rev_data.keys(): + rev_data['minor'] = True if rev_data['minor'] == "TRUE" else False + + + if 'anon' in rev_data.keys(): + rev_data['anon'] = True if rev_data['anon'] == "TRUE" else False + + + self.parquet_buffer.append(rev_data) + + if len(self.parquet_buffer) >= self.parquet_buffer_size: + self.flush_parquet_buffer() + + def flush_parquet_buffer(self): + outtable = pd.DataFrame.from_records(self.parquet_buffer) + outtable = pa.Table.from_pandas(outtable) + if self.pq_writer is None: + schema = outtable.schema + for regex_schema in self.regex_schemas: + schema.append(regex_schema) + + self.pq_writer = pq.ParquetWriter(self.output_file, schema, flavor='spark') + + self.pq_writer.write_table(outtable) + def print_rev_data(self, rev_data): + + if self.output_parquet is False: + printfunc = lambda rev_data: print("\t".join(rev_data), file=self.output_file) + else: + printfunc = self.write_parquet_row + # if it's the first time through, print the header 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) + printfunc(rev_data) self.printed_header = True - print("\t".join([str(v) for k, v in sorted(rev_data.items())]), file=self.output_file) + printfunc(rev_data) def open_input_file(input_filename): if re.match(r'.*\.7z$', input_filename): - cmd = ["7za", "x", "-so", input_filename, '*'] + cmd = ["7za", "x", "-so", input_filename, "*.xml"] elif re.match(r'.*\.gz$', input_filename): cmd = ["zcat", input_filename] elif re.match(r'.*\.bz2$', input_filename): @@ -286,13 +539,19 @@ def open_input_file(input_filename): return input_file -def open_output_file(input_filename): - # create a regex that creates the output filename +def get_output_filename(input_filename, parquet = False): output_filename = re.sub(r'\.(7z|gz|bz2)?$', '', input_filename) output_filename = re.sub(r'\.xml', '', output_filename) - output_filename = output_filename + ".tsv" - output_file = open(output_filename, "w") + if parquet is False: + output_filename = output_filename + ".tsv" + else: + output_filename = output_filename + ".parquet" + return output_filename +def open_output_file(input_filename): + # create a regex that creates the output filename + output_filename = get_output_filename(input_filename, parquet = False) + output_file = open(output_filename, "w") return output_file parser = argparse.ArgumentParser(description='Parse MediaWiki XML database dumps into tab delimitted data.') @@ -302,7 +561,7 @@ parser.add_argument('dumpfiles', metavar="DUMPFILE", nargs="*", type=str, help="Filename of the compressed or uncompressed XML database dump. If absent, we'll look for content on stdin and output on stdout.") parser.add_argument('-o', '--output-dir', metavar='DIR', dest='output_dir', type=str, nargs=1, - help="Directory for output files.") + help="Directory for output files. If it ends with .parquet output will be in parquet format.") parser.add_argument('-s', '--stdout', dest="stdout", action="store_true", help="Write output to standard out (do not create dump file)") @@ -310,15 +569,57 @@ 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. The defualt is -p=sequence, which uses the same algorithm as in the past, but with improvements to wikitext parsing. Use -p=legacy for old behavior used in older research projects. Use -p=segment for advanced persistence calculation method that is robust to content moves, but prone to bugs, and slower.") 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.") + +parser.add_argument('-rr', + '--revert-radius', + dest="revert_radius", + type=int, + action='store', + default=15, + help="Number of edits to check when looking for reverts (default: 15)") + +parser.add_argument('-RP', '--revision-pattern', dest="regex_match_revision", default=None, type=str, action='append', + help="The regular expression to search for in revision text. The regex must be surrounded by quotes.") + +parser.add_argument('-RPl', '--revision-pattern-label', dest="regex_revision_label", default=None, type=str, action='append', + help="The label for the outputted column based on matching the regex in revision text.") + +parser.add_argument('-CP', '--comment-pattern', dest="regex_match_comment", default=None, type=str, action='append', + help="The regular expression to search for in comments of revisions.") + +parser.add_argument('-CPl', '--comment-pattern-label', dest="regex_comment_label", default=None, type=str, action='append', + help="The label for the outputted column based on matching the regex in comments.") + 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: + output_parquet = False for filename in args.dumpfiles: input_file = open_input_file(filename) @@ -328,31 +629,51 @@ if len(args.dumpfiles) > 0: else: output_dir = "." + if output_dir.endswith(".parquet"): + output_parquet = True + print("Processing file: %s" % filename, file=sys.stderr) if args.stdout: output_file = sys.stdout else: filename = os.path.join(output_dir, os.path.basename(filename)) - output_file = open_output_file(filename) + output_file = get_output_filename(filename, parquet = output_parquet) - wikiq = WikiqParser(input_file, output_file, + wikiq = WikiqParser(input_file, + output_file, collapse_user=args.collapse_user, - persist=args.persist, - urlencode=args.urlencode) - - + persist=persist, + urlencode=args.urlencode, + namespaces=namespaces, + revert_radius=args.revert_radius, + regex_match_revision = args.regex_match_revision, + regex_revision_label = args.regex_revision_label, + regex_match_comment = args.regex_match_comment, + regex_comment_label = args.regex_comment_label, + output_parquet=output_parquet) + + print(wikiq.output_parquet) wikiq.process() # close things input_file.close() - output_file.close() + else: - wikiq = WikiqParser(sys.stdin, sys.stdout, + wikiq = WikiqParser(sys.stdin, + sys.stdout, collapse_user=args.collapse_user, - persist=args.persist, - urlencode=args.urlencode) - wikiq.process() + persist=persist, + #persist_legacy=args.persist_legacy, + urlencode=args.urlencode, + namespaces=namespaces, + revert_radius=args.revert_radius, + regex_match_revision = args.regex_match_revision, + regex_revision_label = args.regex_revision_label, + regex_match_comment = args.regex_match_comment, + regex_comment_label = args.regex_comment_label) + + 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" # stop_words = stop_words.split(",")