Make backend dev server script serve the image files

Previously, image files in backend/data/img were moved to, or
symlinked from, public/. This needed to be changed before each
build, otherwise vite would end up copying gigabytes of images.

7 files changed, 0 insertions, 736 deletions

diff --git a/backend/data/enwiki/README.md b/backend/data/enwiki/README.md
deleted file mode 100644
index 90d16c7..0000000
--- a/backend/data/enwiki/README.md
+++ /dev/null
@@ -1,52 +0,0 @@
-This directory holds files obtained from/using [English Wikipedia](https://en.wikipedia.org/wiki/Main_Page).
-
-# Downloaded Files
--   enwiki-20220501-pages-articles-multistream.xml.bz2 <br>
-    Obtained via <https://dumps.wikimedia.org/backup-index.html> (site suggests downloading from a mirror).
-    Contains text content and metadata for pages in enwiki.
-    Some file content and format information was available from
-        <https://meta.wikimedia.org/wiki/Data_dumps/What%27s_available_for_download>.
--   enwiki-20220501-pages-articles-multistream-index.txt.bz2 <br>
-    Obtained like above. Holds lines of the form offset1:pageId1:title1,
-    providing, for each page, an offset into the dump file of a chunk of
-    100 pages that includes it.
-
-# Generated Dump-Index Files
--   genDumpIndexDb.py <br>
-    Creates an sqlite-database version of the enwiki-dump index file.
--   dumpIndex.db <br>
-    Generated by genDumpIndexDb.py. <br>
-    Tables: <br>
-    -   `offsets`: `title TEXT PRIMARY KEY, id INT UNIQUE, offset INT, next_offset INT`
-
-# Description Database Files
--   genDescData.py <br>
-    Reads through pages in the dump file, and adds short-description info to a database.
--   descData.db <br>
-    Generated by genDescData.py. <br>
-    Tables: <br>
-    -   `pages`:     `id INT PRIMARY KEY, title TEXT UNIQUE`
-    -   `redirects`: `id INT PRIMARY KEY, target TEXT`
-    -   `descs`:     `id INT PRIMARY KEY, desc TEXT`
-
-# Image Database Files
--   genImgData.py <br>
-    Used to find infobox image names for page IDs, storing them into a database.
--   downloadImgLicenseInfo.py <br>
-    Used to download licensing metadata for image names, via wikipedia's online API, storing them into a database.
--   imgData.db <br>
-    Used to hold metadata about infobox images for a set of pageIDs.
-    Generated using getEnwikiImgData.py and downloadImgLicenseInfo.py. <br>
-    Tables: <br>
-    -   `page_imgs`: `page_id INT PRIMAY KEY, img_name TEXT` <br>
-        `img_name` may be null, which means 'none found', and is used to avoid re-processing page-ids.
-    -   `imgs`: `name TEXT PRIMARY KEY, license TEXT, artist TEXT, credit TEXT, restrictions TEXT, url TEXT` <br>
-        Might lack some matches for `img_name` in `page_imgs`, due to licensing info unavailability.
--   downloadImgs.py <br>
-    Used to download image files into imgs/.
-
-# Other Files
--   lookupPage.py <br>
-    Running `lookupPage.py title1` looks in the dump for a page with a given title,
-    and prints the contents to stdout. Uses dumpIndex.db.
-
diff --git a/backend/data/enwiki/downloadImgLicenseInfo.py b/backend/data/enwiki/downloadImgLicenseInfo.py
deleted file mode 100755
index 399922e..0000000
--- a/backend/data/enwiki/downloadImgLicenseInfo.py
+++ /dev/null
@@ -1,150 +0,0 @@
-#!/usr/bin/python3
-
-import sys, re
-import sqlite3, urllib.parse, html
-import requests
-import time, signal
-
-usageInfo = f"""
-Usage: {sys.argv[0]}
-
-Reads image names from a database, and uses enwiki's online API to obtain
-licensing information for them, adding the info to the database.
-
-SIGINT causes the program to finish an ongoing download and exit.
-The program can be re-run to continue downloading, and looks
-at already-processed names to decide what to skip.
-"""
-if len(sys.argv) > 1:
-	print(usageInfo, file=sys.stderr)
-	sys.exit(1)
-
-imgDb = "imgData.db"
-apiUrl = "https://en.wikipedia.org/w/api.php"
-userAgent = "terryt.dev (terry06890@gmail.com)"
-batchSz = 50 # Max 50
-tagRegex = re.compile(r"<[^<]+>")
-whitespaceRegex = re.compile(r"\s+")
-
-print("Opening database")
-dbCon = sqlite3.connect(imgDb)
-dbCur = dbCon.cursor()
-dbCur2 = dbCon.cursor()
-print("Checking for table")
-if dbCur.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='imgs'").fetchone() == None:
-	dbCur.execute("CREATE TABLE imgs(" \
-		"name TEXT PRIMARY KEY, license TEXT, artist TEXT, credit TEXT, restrictions TEXT, url TEXT)")
-
-print("Reading image names")
-imgNames = set()
-for (imgName,) in dbCur.execute("SELECT DISTINCT img_name FROM page_imgs WHERE img_name NOT NULL"):
-	imgNames.add(imgName)
-print(f"Found {len(imgNames)}")
-
-print("Checking for already-processed images")
-oldSz = len(imgNames)
-for (imgName,) in dbCur.execute("SELECT name FROM imgs"):
-	imgNames.discard(imgName)
-print(f"Found {oldSz - len(imgNames)}")
-
-# Set SIGINT handler
-interrupted = False
-oldHandler = None
-def onSigint(sig, frame):
-	global interrupted
-	interrupted = True
-	signal.signal(signal.SIGINT, oldHandler)
-oldHandler = signal.signal(signal.SIGINT, onSigint)
-
-print("Iterating through image names")
-imgNames = list(imgNames)
-iterNum = 0
-for i in range(0, len(imgNames), batchSz):
-	iterNum += 1
-	if iterNum % 1 == 0:
-		print(f"At iteration {iterNum} (after {(iterNum - 1) * batchSz} images)")
-	if interrupted:
-		print(f"Exiting loop at iteration {iterNum}")
-		break
-	# Get batch
-	imgBatch = imgNames[i:i+batchSz]
-	imgBatch = ["File:" + x for x in imgBatch]
-	# Make request
-	headers = {
-		"user-agent": userAgent,
-		"accept-encoding": "gzip",
-	}
-	params = {
-		"action": "query",
-		"format": "json",
-		"prop": "imageinfo",
-		"iiprop": "extmetadata|url",
-		"maxlag": "5",
-		"titles": "|".join(imgBatch),
-		"iiextmetadatafilter": "Artist|Credit|LicenseShortName|Restrictions",
-	}
-	responseObj = None
-	try:
-		response = requests.get(apiUrl, params=params, headers=headers)
-		responseObj = response.json()
-	except Exception as e:
-		print(f"ERROR: Exception while downloading info: {e}")
-		print(f"\tImage batch: " + "|".join(imgBatch))
-		continue
-	# Parse response-object
-	if "query" not in responseObj or "pages" not in responseObj["query"]:
-		print("WARNING: Response object for doesn't have page data")
-		print("\tImage batch: " + "|".join(imgBatch))
-		if "error" in responseObj:
-			errorCode = responseObj["error"]["code"]
-			print(f"\tError code: {errorCode}")
-			if errorCode == "maxlag":
-				time.sleep(5)
-		continue
-	pages = responseObj["query"]["pages"]
-	normalisedToInput = {}
-	if "normalized" in responseObj["query"]:
-		for entry in responseObj["query"]["normalized"]:
-			normalisedToInput[entry["to"]] = entry["from"]
-	for (_, page) in pages.items():
-		# Some fields // More info at https://www.mediawiki.org/wiki/Extension:CommonsMetadata#Returned_data
-			# LicenseShortName: short human-readable license name, apparently more reliable than 'License',
-			# Artist: author name (might contain complex html, multiple authors, etc)
-			# Credit: 'source'
-				# For image-map-like images, can be quite large/complex html, creditng each sub-image
-				# May be <a href="text1">text2</a>, where the text2 might be non-indicative
-			# Restrictions: specifies non-copyright legal restrictions
-		title = page["title"]
-		if title in normalisedToInput:
-			title = normalisedToInput[title]
-		title = title[5:] # Remove 'File:'
-		if title not in imgNames:
-			print(f"WARNING: Got title \"{title}\" not in image-name list")
-			continue
-		if "imageinfo" not in page:
-			print(f"WARNING: No imageinfo section for page \"{title}\"")
-			continue
-		metadata = page["imageinfo"][0]["extmetadata"]
-		url = page["imageinfo"][0]["url"]
-		license = metadata['LicenseShortName']['value'] if 'LicenseShortName' in metadata else None
-		artist = metadata['Artist']['value'] if 'Artist' in metadata else None
-		credit = metadata['Credit']['value'] if 'Credit' in metadata else None
-		restrictions = metadata['Restrictions']['value'] if 'Restrictions' in metadata else None
-		# Remove markup
-		if artist != None:
-			artist = tagRegex.sub(" ", artist)
-			artist = whitespaceRegex.sub(" ", artist)
-			artist = html.unescape(artist)
-			artist = urllib.parse.unquote(artist)
-		if credit != None:
-			credit = tagRegex.sub(" ", credit)
-			credit = whitespaceRegex.sub(" ", credit)
-			credit = html.unescape(credit)
-			credit = urllib.parse.unquote(credit)
-		# Add to db
-		dbCur2.execute("INSERT INTO imgs VALUES (?, ?, ?, ?, ?, ?)",
-			(title, license, artist, credit, restrictions, url))
-
-print("Closing database")
-dbCon.commit()
-dbCon.close()
diff --git a/backend/data/enwiki/downloadImgs.py b/backend/data/enwiki/downloadImgs.py
deleted file mode 100755
index 8fb605f..0000000
--- a/backend/data/enwiki/downloadImgs.py
+++ /dev/null
@@ -1,91 +0,0 @@
-#!/usr/bin/python3
-
-import sys, re, os
-import sqlite3
-import urllib.parse, requests
-import time, signal
-
-usageInfo = f"""
-Usage: {sys.argv[0]}
-
-Downloads images from URLs in an image database, into an output directory,
-with names of the form 'pageId1.ext1'.
-
-SIGINT causes the program to finish an ongoing download and exit.
-The program can be re-run to continue downloading, and looks
-in the output directory do decide what to skip.
-"""
-if len(sys.argv) > 1:
-	print(usageInfo, file=sys.stderr)
-	sys.exit(1)
-
-imgDb = "imgData.db" # About 130k image names
-outDir = "imgs"
-licenseRegex = re.compile(r"cc0|cc([ -]by)?([ -]sa)?([ -][1234]\.[05])?( \w\w\w?)?", flags=re.IGNORECASE)
-# In testing, this downloaded about 100k images, over several days
-
-if not os.path.exists(outDir):
-	os.mkdir(outDir)
-print("Checking for already-downloaded images")
-fileList = os.listdir(outDir)
-pageIdsDone = set()
-for filename in fileList:
-	(basename, extension) = os.path.splitext(filename)
-	pageIdsDone.add(int(basename))
-print(f"Found {len(pageIdsDone)}")
-
-# Set SIGINT handler
-interrupted = False
-oldHandler = None
-def onSigint(sig, frame):
-	global interrupted
-	interrupted = True
-	signal.signal(signal.SIGINT, oldHandler)
-oldHandler = signal.signal(signal.SIGINT, onSigint)
-
-print("Opening database")
-dbCon = sqlite3.connect(imgDb)
-dbCur = dbCon.cursor()
-print("Starting downloads")
-iterNum = 0
-query = "SELECT page_id, license, artist, credit, restrictions, url FROM" \
-	" imgs INNER JOIN page_imgs ON imgs.name = page_imgs.img_name"
-for (pageId, license, artist, credit, restrictions, url) in dbCur.execute(query):
-	if pageId in pageIdsDone:
-		continue
-	if interrupted:
-		print(f"Exiting loop")
-		break
-	# Check for problematic attributes
-	if license == None or licenseRegex.fullmatch(license) == None:
-		continue
-	if artist == None or artist == "" or len(artist) > 100 or re.match(r"(\d\. )?File:", artist) != None:
-		continue
-	if credit == None or len(credit) > 300 or re.match(r"File:", credit) != None:
-		continue
-	if restrictions != None and restrictions != "":
-		continue
-	# Download image
-	iterNum += 1
-	print(f"Iteration {iterNum}: Downloading for page-id {pageId}")
-	urlParts = urllib.parse.urlparse(url)
-	extension = os.path.splitext(urlParts.path)[1]
-	if len(extension) <= 1:
-		print(f"WARNING: No filename extension found in URL {url}")
-		sys.exit(1)
-	outFile = f"{outDir}/{pageId}{extension}"
-	headers = {
-		"user-agent": "terryt.dev (terry06890@gmail.com)",
-		"accept-encoding": "gzip",
-	}
-	try:
-		response = requests.get(url, headers=headers)
-		with open(outFile, 'wb') as file:
-			file.write(response.content)
-		time.sleep(1)
-			# https://en.wikipedia.org/wiki/Wikipedia:Database_download says to "throttle self to 1 cache miss per sec"
-			# It's unclear how to properly check for cache misses, so this just aims for 1 per sec
-	except Exception as e:
-		print(f"Error while downloading to {outFile}: {e}")
-print("Closing database")
-dbCon.close()
diff --git a/backend/data/enwiki/genDescData.py b/backend/data/enwiki/genDescData.py
deleted file mode 100755
index b0ca272..0000000
--- a/backend/data/enwiki/genDescData.py
+++ /dev/null
@@ -1,127 +0,0 @@
-#!/usr/bin/python3
-
-import sys, os, re
-import bz2
-import html, mwxml, mwparserfromhell
-import sqlite3
-
-usageInfo = f"""
-Usage: {sys.argv[0]}
-
-Reads through the wiki dump, and attempts to
-parse short-descriptions, and add them to a database.
-"""
-if len(sys.argv) > 1:
-	print(usageInfo, file=sys.stderr)
-	sys.exit(1)
-
-dumpFile = "enwiki-20220501-pages-articles-multistream.xml.bz2" # Had about 22e6 pages
-enwikiDb = "descData.db"
-# In testing, this script took over 10 hours to run, and generated about 5GB
-
-descLineRegex = re.compile("^ *[A-Z'\"]")
-embeddedHtmlRegex = re.compile(r"<[^<]+/>|<!--[^<]+-->|<[^</]+>([^<]*|[^<]*<[^<]+>[^<]*)</[^<]+>|<[^<]+$")
-	# Recognises a self-closing HTML tag, a tag with 0 children, tag with 1 child with 0 children, or unclosed tag
-convertTemplateRegex = re.compile(r"{{convert\|(\d[^|]*)\|(?:(to|-)\|(\d[^|]*)\|)?([a-z][^|}]*)[^}]*}}")
-def convertTemplateReplace(match):
-	if match.group(2) == None:
-		return f"{match.group(1)} {match.group(4)}"
-	else:
-		return f"{match.group(1)} {match.group(2)} {match.group(3)} {match.group(4)}"
-parensGroupRegex = re.compile(r" \([^()]*\)")
-leftoverBraceRegex = re.compile(r"(?:{\||{{).*")
-
-def parseDesc(text):
-	# Find first matching line outside {{...}}, [[...]], and block-html-comment constructs,
-		# and then accumulate lines until a blank one.
-	# Some cases not accounted for include: disambiguation pages, abstracts with sentences split-across-lines, 
-		# nested embedded html, 'content significant' embedded-html, markup not removable with mwparsefromhell, 
-	lines = []
-	openBraceCount = 0
-	openBracketCount = 0
-	inComment = False
-	skip = False
-	for line in text.splitlines():
-		line = line.strip()
-		if len(lines) == 0:
-			if len(line) > 0:
-				if openBraceCount > 0 or line[0] == "{":
-					openBraceCount += line.count("{")
-					openBraceCount -= line.count("}")
-					skip = True
-				if openBracketCount > 0 or line[0] == "[":
-					openBracketCount += line.count("[")
-					openBracketCount -= line.count("]")
-					skip = True
-				if inComment or line.find("<!--") != -1:
-					if line.find("-->") != -1:
-						if inComment:
-							inComment = False
-							skip = True
-					else:
-						inComment = True
-						skip = True
-				if skip:
-					skip = False
-					continue
-				if line[-1] == ":": # Seems to help avoid disambiguation pages
-					return None
-				if descLineRegex.match(line) != None:
-					lines.append(line)
-		else:
-			if len(line) == 0:
-				return removeMarkup(" ".join(lines))
-			lines.append(line)
-	if len(lines) > 0:
-		return removeMarkup(" ".join(lines))
-	return None
-def removeMarkup(content):
-	content = embeddedHtmlRegex.sub("", content)
-	content = convertTemplateRegex.sub(convertTemplateReplace, content)
-	content = mwparserfromhell.parse(content).strip_code() # Remove wikitext markup
-	content = parensGroupRegex.sub("", content)
-	content = leftoverBraceRegex.sub("", content)
-	return content
-def convertTitle(title):
-	return html.unescape(title).replace("_", " ")
-
-print("Creating database")
-if os.path.exists(enwikiDb):
-	raise Exception(f"ERROR: Existing {enwikiDb}")
-dbCon = sqlite3.connect(enwikiDb)
-dbCur = dbCon.cursor()
-dbCur.execute("CREATE TABLE pages (id INT PRIMARY KEY, title TEXT UNIQUE)")
-dbCur.execute("CREATE INDEX pages_title_idx ON pages(title COLLATE NOCASE)")
-dbCur.execute("CREATE TABLE redirects (id INT PRIMARY KEY, target TEXT)")
-dbCur.execute("CREATE INDEX redirects_idx ON redirects(target)")
-dbCur.execute("CREATE TABLE descs (id INT PRIMARY KEY, desc TEXT)")
-
-print("Iterating through dump file")
-with bz2.open(dumpFile, mode='rt') as file:
-	dump = mwxml.Dump.from_file(file)
-	pageNum = 0
-	for page in dump:
-		pageNum += 1
-		if pageNum % 1e4 == 0:
-			print(f"At page {pageNum}")
-		if pageNum > 3e4:
-			break
-		# Parse page
-		if page.namespace == 0:
-			try:
-				dbCur.execute("INSERT INTO pages VALUES (?, ?)", (page.id, convertTitle(page.title)))
-			except sqlite3.IntegrityError as e:
-				# Accounts for certain pages that have the same title
-				print(f"Failed to add page with title \"{page.title}\": {e}", file=sys.stderr)
-				continue
-			if page.redirect != None:
-				dbCur.execute("INSERT INTO redirects VALUES (?, ?)", (page.id, convertTitle(page.redirect)))
-			else:
-				revision = next(page)
-				desc = parseDesc(revision.text)
-				if desc != None:
-					dbCur.execute("INSERT INTO descs VALUES (?, ?)", (page.id, desc))
-
-print("Closing database")
-dbCon.commit()
-dbCon.close()
diff --git a/backend/data/enwiki/genDumpIndexDb.py b/backend/data/enwiki/genDumpIndexDb.py
deleted file mode 100755
index 3955885..0000000
--- a/backend/data/enwiki/genDumpIndexDb.py
+++ /dev/null
@@ -1,58 +0,0 @@
-#!/usr/bin/python3
-
-import sys, os, re
-import bz2
-import sqlite3
-
-usageInfo = f"""
-Usage: {sys.argv[0]}
-
-Adds data from the wiki dump index-file into a database.
-"""
-if len(sys.argv) > 1:
-	print(usageInfo, file=sys.stderr)
-	sys.exit(1)
-
-indexFile = "enwiki-20220501-pages-articles-multistream-index.txt.bz2" # Had about 22e6 lines
-indexDb = "dumpIndex.db"
-
-if os.path.exists(indexDb):
-	raise Exception(f"ERROR: Existing {indexDb}")
-print("Creating database")
-dbCon = sqlite3.connect(indexDb)
-dbCur = dbCon.cursor()
-dbCur.execute("CREATE TABLE offsets (title TEXT PRIMARY KEY, id INT UNIQUE, offset INT, next_offset INT)")
-
-print("Iterating through index file")
-lineRegex = re.compile(r"([^:]+):([^:]+):(.*)")
-lastOffset = 0
-lineNum = 0
-entriesToAdd = []
-with bz2.open(indexFile, mode='rt') as file:
-	for line in file:
-		lineNum += 1
-		if lineNum % 1e5 == 0:
-			print(f"At line {lineNum}")
-		#
-		match = lineRegex.fullmatch(line.rstrip())
-		(offset, pageId, title) = match.group(1,2,3)
-		offset = int(offset)
-		if offset > lastOffset:
-			for (t, p) in entriesToAdd:
-				try:
-					dbCur.execute("INSERT INTO offsets VALUES (?, ?, ?, ?)", (t, p, lastOffset, offset))
-				except sqlite3.IntegrityError as e:
-					# Accounts for certain entries in the file that have the same title
-					print(f"Failed on title \"{t}\": {e}", file=sys.stderr)
-			entriesToAdd = []
-			lastOffset = offset
-		entriesToAdd.append([title, pageId])
-for (title, pageId) in entriesToAdd:
-	try:
-		dbCur.execute("INSERT INTO offsets VALUES (?, ?, ?, ?)", (title, pageId, lastOffset, -1))
-	except sqlite3.IntegrityError as e:
-		print(f"Failed on title \"{t}\": {e}", file=sys.stderr)
-
-print("Closing database")
-dbCon.commit()
-dbCon.close()
diff --git a/backend/data/enwiki/genImgData.py b/backend/data/enwiki/genImgData.py
deleted file mode 100755
index dedfe14..0000000
--- a/backend/data/enwiki/genImgData.py
+++ /dev/null
@@ -1,190 +0,0 @@
-#!/usr/bin/python3
-
-import sys, re
-import bz2, html, urllib.parse
-import sqlite3
-
-usageInfo = f"""
-Usage: {sys.argv[0]}
-
-For some set of page IDs, looks up their content in the wiki dump,
-and tries to parse infobox image names, storing them into a database.
-
-The program can be re-run with an updated set of page IDs, and
-will skip already-processed page IDs.
-"""
-if len(sys.argv) > 1:
-	print(usageInfo, file=sys.stderr)
-	sys.exit(1)
-
-def getInputPageIds():
-	pageIds = set()
-	dbCon = sqlite3.connect("../data.db")
-	dbCur = dbCon.cursor()
-	for (pageId,) in dbCur.execute("SELECT id from wiki_ids"):
-		pageIds.add(pageId)
-	dbCon.close()
-	return pageIds
-dumpFile = "enwiki-20220501-pages-articles-multistream.xml.bz2"
-indexDb = "dumpIndex.db"
-imgDb = "imgData.db" # The database to create
-idLineRegex = re.compile(r"<id>(.*)</id>")
-imageLineRegex = re.compile(r".*\| *image *= *([^|]*)")
-bracketImageRegex = re.compile(r"\[\[(File:[^|]*).*]]")
-imageNameRegex = re.compile(r".*\.(jpg|jpeg|png|gif|tiff|tif)", flags=re.IGNORECASE)
-cssImgCropRegex = re.compile(r"{{css image crop\|image *= *(.*)", flags=re.IGNORECASE)
-# In testing, got about 360k image names
-
-print("Getting input page-ids")
-pageIds = getInputPageIds()
-print(f"Found {len(pageIds)}")
-
-print("Opening databases")
-indexDbCon = sqlite3.connect(indexDb)
-indexDbCur = indexDbCon.cursor()
-imgDbCon = sqlite3.connect(imgDb)
-imgDbCur = imgDbCon.cursor()
-print("Checking tables")
-if imgDbCur.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='page_imgs'").fetchone() == None:
-	# Create tables if not present
-	imgDbCur.execute("CREATE TABLE page_imgs (page_id INT PRIMARY KEY, img_name TEXT)") # img_name may be NULL
-	imgDbCur.execute("CREATE INDEX page_imgs_idx ON page_imgs(img_name)")
-else:
-	# Check for already-processed page IDs
-	numSkipped = 0
-	for (pid,) in imgDbCur.execute("SELECT page_id FROM page_imgs"):
-		if pid in pageIds:
-			pageIds.remove(pid)
-			numSkipped += 1
-		else:
-			print(f"WARNING: Found already-processed page ID {pid} which was not in input set")
-	print(f"Will skip {numSkipped} already-processed page IDs")
-
-print("Getting dump-file offsets")
-offsetToPageids = {}
-offsetToEnd = {} # Maps chunk-start offsets to their chunk-end offsets
-iterNum = 0
-for pageId in pageIds:
-	iterNum += 1
-	if iterNum % 1e4 == 0:
-		print(f"At iteration {iterNum}")
-	#
-	query = "SELECT offset, next_offset FROM offsets WHERE id = ?"
-	row = indexDbCur.execute(query, (pageId,)).fetchone()
-	if row == None:
-		print(f"WARNING: Page ID {pageId} not found")
-		continue
-	(chunkOffset, endOffset) = row
-	offsetToEnd[chunkOffset] = endOffset
-	if chunkOffset not in offsetToPageids:
-		offsetToPageids[chunkOffset] = []
-	offsetToPageids[chunkOffset].append(pageId)
-print(f"Found {len(offsetToEnd)} chunks to check")
-
-print("Iterating through chunks in dump file")
-def getImageName(content):
-	" Given an array of text-content lines, tries to return an infoxbox image name, or None "
-	# Doesn't try and find images in outside-infobox [[File:...]] and <imagemap> sections
-	for line in content:
-		match = imageLineRegex.match(line)
-		if match != None:
-			imageName = match.group(1).strip()
-			if imageName == "":
-				return None
-			imageName = html.unescape(imageName)
-			# Account for {{...
-			if imageName.startswith("{"):
-				match = cssImgCropRegex.match(imageName)
-				if match == None:
-					return None
-				imageName = match.group(1)
-			# Account for [[File:...|...]]
-			if imageName.startswith("["):
-				match = bracketImageRegex.match(imageName)
-				if match == None:
-					return None
-				imageName = match.group(1)
-			# Account for <!--
-			if imageName.find("<!--") != -1:
-				return None
-			# Remove an initial 'File:'
-			if imageName.startswith("File:"):
-				imageName = imageName[5:]
-			# Remove an initial 'Image:'
-			if imageName.startswith("Image:"):
-				imageName = imageName[6:]
-			# Check for extension
-			match = imageNameRegex.match(imageName)
-			if match != None:
-				imageName = match.group(0)
-				imageName = urllib.parse.unquote(imageName)
-				imageName = html.unescape(imageName) # Intentionally unescaping again (handles some odd cases)
-				imageName = imageName.replace("_", " ")
-				return imageName
-			# Exclude lines like: | image = &lt;imagemap&gt;
-			return None
-	return None
-with open(dumpFile, mode='rb') as file:
-	iterNum = 0
-	for (pageOffset, endOffset) in offsetToEnd.items():
-		iterNum += 1
-		if iterNum % 100 == 0:
-			print(f"At iteration {iterNum}")
-		#
-		pageIds = offsetToPageids[pageOffset]
-		# Jump to chunk
-		file.seek(pageOffset)
-		compressedData = file.read(None if endOffset == -1 else endOffset - pageOffset)
-		data = bz2.BZ2Decompressor().decompress(compressedData).decode()
-		# Look in chunk for pages
-		lines = data.splitlines()
-		lineIdx = 0
-		while lineIdx < len(lines):
-			# Look for <page>
-			if lines[lineIdx].lstrip() != "<page>":
-				lineIdx += 1
-				continue
-			# Check page id
-			lineIdx += 3
-			idLine = lines[lineIdx].lstrip()
-			match = idLineRegex.fullmatch(idLine)
-			if match == None or int(match.group(1)) not in pageIds:
-				lineIdx += 1
-				continue
-			pageId = int(match.group(1))
-			lineIdx += 1
-			# Look for <text> in <page>
-			foundText = False
-			while lineIdx < len(lines):
-				if not lines[lineIdx].lstrip().startswith("<text "):
-					lineIdx += 1
-					continue
-				foundText = True
-				# Get text content
-				content = []
-				line = lines[lineIdx]
-				content.append(line[line.find(">") + 1:])
-				lineIdx += 1
-				foundTextEnd = False
-				while lineIdx < len(lines):
-					line = lines[lineIdx]
-					if not line.endswith("</text>"):
-						content.append(line)
-						lineIdx += 1
-						continue
-					foundTextEnd = True
-					content.append(line[:line.rfind("</text>")])
-					# Look for image-filename
-					imageName = getImageName(content)
-					imgDbCur.execute("INSERT into page_imgs VALUES (?, ?)", (pageId, imageName))
-					break
-				if not foundTextEnd:
-					print(f"WARNING: Did not find </text> for page id {pageId}")
-				break
-			if not foundText:
-				print(f"WARNING: Did not find <text> for page id {pageId}")
-
-print("Closing databases")
-indexDbCon.close()
-imgDbCon.commit()
-imgDbCon.close()
diff --git a/backend/data/enwiki/lookupPage.py b/backend/data/enwiki/lookupPage.py
deleted file mode 100755
index 1a90851..0000000
--- a/backend/data/enwiki/lookupPage.py
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/usr/bin/python3
-
-import sys, re
-import bz2
-import sqlite3
-
-usageInfo = f"""
-Usage: {sys.argv[0]} title1
-
-Looks up a page with title title1 in the wiki dump, using
-the dump-index db, and prints the corresponding <page>.
-"""
-if len(sys.argv) != 2:
-	print(usageInfo, file=sys.stderr)
-	sys.exit(1)
-
-dumpFile = "enwiki-20220501-pages-articles-multistream.xml.bz2"
-indexDb = "dumpIndex.db"
-pageTitle = sys.argv[1].replace("_", " ")
-
-print("Looking up offset in index db")
-dbCon = sqlite3.connect(indexDb)
-dbCur = dbCon.cursor()
-query = "SELECT title, offset, next_offset FROM offsets WHERE title = ?"
-row = dbCur.execute(query, (pageTitle,)).fetchone()
-if row == None:
-	print("Title not found")
-	sys.exit(0)
-_, pageOffset, endOffset = row
-dbCon.close()
-print(f"Found chunk at offset {pageOffset}")
-
-print("Reading from wiki dump")
-content = []
-with open(dumpFile, mode='rb') as file:
-	# Get uncompressed chunk
-	file.seek(pageOffset)
-	compressedData = file.read(None if endOffset == -1 else endOffset - pageOffset)
-	data = bz2.BZ2Decompressor().decompress(compressedData).decode()
-	# Look in chunk for page
-	lines = data.splitlines()
-	lineIdx = 0
-	found = False
-	pageNum = 0
-	while not found:
-		line = lines[lineIdx]
-		if line.lstrip() == "<page>":
-			pageNum += 1
-			if pageNum > 100:
-				print("ERROR: Did not find title after 100 pages")
-				break
-			lineIdx += 1
-			titleLine = lines[lineIdx]
-			if titleLine.lstrip() == '<title>' + pageTitle + '</title>':
-				found = True
-				print(f"Found title in chunk as page {pageNum}")
-				content.append(line)
-				content.append(titleLine)
-				while True:
-					lineIdx += 1
-					line = lines[lineIdx]
-					content.append(line)
-					if line.lstrip() == "</page>":
-						break
-		lineIdx += 1
-
-print("Content: ")
-print("\n".join(content))