From f8f44293d916dfdcb9714956b931df5b32b23283 Mon Sep 17 00:00:00 2001
From: Ben Kurtovic <ben.kurtovic@gmail.com>
Date: Thu, 28 Sep 2017 03:32:27 -0500
Subject: [PATCH] Add banner_untag task.

---
 tasks/banner_untag.py | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 tasks/banner_untag.py

diff --git a/tasks/banner_untag.py b/tasks/banner_untag.py
new file mode 100644
index 0000000..37ae812
--- /dev/null
+++ b/tasks/banner_untag.py
@@ -0,0 +1,101 @@
+# -*- coding: utf-8  -*-
+#
+# Copyright (C) 2017 Ben Kurtovic <ben.kurtovic@gmail.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import time
+
+from earwigbot.tasks import Task
+
+class BannerUntag(Task):
+    """A task to undo mistaken tagging edits made by wikiproject_tagger."""
+    name = "banner_untag"
+    number = 14
+
+    def run(self, **kwargs):
+        self.site = self.bot.wiki.get_site()
+        self.summary = kwargs["summary"]
+        self.throttle = int(kwargs.get("throttle", 0))
+
+        rev_file = kwargs["rev-file"]
+        done_file = kwargs["done-file"]
+        error_file = kwargs["error-file"]
+
+        with open(rev_file) as fp:
+            data = fp.read().splitlines()
+
+        with open(done_file) as donefp:
+            done = [int(line) for line in donefp.read().splitlines()]
+
+        with open(error_file, "a") as errfp:
+            with open(done_file, "a") as donefp:
+                self._process_data(data, done, errfp, donefp)
+
+    def _process_data(self, data, done, errfile, donefile):
+        chunksize = 50
+        for chunkidx in range((len(data) + chunksize - 1) / chunksize):
+            chunk = data[chunkidx*chunksize:(chunkidx+1)*chunksize]
+            chunk = [[int(x) for x in line.split("\t")] for line in chunk]
+            if self.shutoff_enabled():
+                return
+            self._process_chunk(chunk, done, errfile, donefile)
+
+    def _process_chunk(self, chunk, done, errfile, donefile):
+        pageids_to_revids = dict(chunk)
+        res = self.site.api_query(
+            action="query", prop="revisions", rvprop="ids",
+            pageids="|".join(str(item[0]) for item in chunk), formatversion=2)
+
+        stage2 = []
+        for pagedata in res["query"]["pages"]:
+            pageid = pagedata["pageid"]
+            title = pagedata["title"]
+            revid = pagedata["revisions"][0]["revid"]
+            parentid = pagedata["revisions"][0]["parentid"]
+            if pageids_to_revids[pageid] == revid:
+                stage2.append(str(parentid))
+            else:
+                self.logger.info(u"Skipping [[%s]], not latest edit" % title)
+                done.append(pageid)
+                donefile.write("%d\n" % pageid)
+                errfile.write(u"%s\n" % title)
+
+        if not stage2:
+            return
+
+        res2 = self.site.api_query(
+            action="query", prop="revisions", rvprop="content",
+            revids="|".join(stage2), formatversion=2)
+
+        for pagedata in res2["query"]["pages"]:
+            if pagedata["revisions"][0]["contentmodel"] != "wikitext":
+                continue
+            pageid = pagedata["pageid"]
+            title = pagedata["title"]
+            content = pagedata["revisions"][0]["content"]
+
+            self.logger.debug(u"Reverting one edit on [[%s]]" % title)
+            page = self.site.get_page(title)
+            page.edit(content, self.summary, minor=True, bot=True)
+
+            done.append(pageid)
+            donefile.write("%d\n" % pageid)
+            if self.throttle:
+                time.sleep(self.throttle)