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make-sqlite.py

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#!/usr/bin/python2.7

#

# Builds an sqlite DB containing all the rulesets, indexed by target.

import subprocess

import sqlite3

import sys, re, os

from lxml import etree

def nomes_all(where=sys.argv[1:]):

"""Returns generator to extract all files from a list of files/dirs"""

if not where: where=['.']

for i in where:

if os.path.isfile(i):

yield i

elif os.path.isdir(i):

for r, d, f in os.walk(i):

for fi in f:

yield os.path.join(r, fi)

conn = sqlite3.connect(os.path.join(os.path.dirname(__file__), '../src/defaults/rulesets.sqlite'))

c = conn.cursor()

c.execute('''DROP TABLE IF EXISTS rulesets''')

c.execute('''CREATE TABLE rulesets

(id INTEGER PRIMARY KEY,

contents TEXT)''')

c.execute('''DROP TABLE IF EXISTS targets''')

c.execute('''CREATE TABLE targets

(host TEXT,

ruleset_id INTEGER)''')

c.execute('''DROP TABLE IF EXISTS git_commit''')

c.execute('''CREATE TABLE git_commit

(git_commit TEXT)''')

git_commit = subprocess.check_output("git rev-parse HEAD", shell=True).rstrip("\n")

c.execute('''INSERT INTO git_commit (git_commit) VALUES(?)''', (git_commit,))

parser = etree.XMLParser(remove_blank_text=True)

for fi in nomes_all():

try:

tree = etree.parse(fi, parser)

except Exception as oops:

if fi[-4:] != ".xml":

continue

print("%s failed XML validity: %s\n" % (fi, oops))

if not tree.xpath("/ruleset"):

continue

# Remove comments to save space.

etree.strip_tags(tree,etree.Comment)

targets = tree.xpath("/ruleset/target/@host")

# Strip out the target tags. These aren't necessary in the DB because

# targets are looked up in the target table, which has a foreign key

# pointing into the ruleset table.

etree.strip_tags(tree,'target')

# Store the filename in the `f' attribute so "view source XML" for rules in

# FF version can find it.

tree.xpath("/ruleset")[0].attrib["f"] = os.path.basename(fi).decode(encoding="UTF-8")

c.execute('''INSERT INTO rulesets (contents) VALUES(?)''', (etree.tostring(tree),));

ruleset_id = c.lastrowid

for target in targets:

c.execute('''INSERT INTO targets (host, ruleset_id) VALUES(?, ?)''', (target, ruleset_id));

conn.commit()

conn.execute("VACUUM")

conn.close()