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scrapeCodesFromWeb.py
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scrapeCodesFromWeb.py
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import warnings
from bs4 import BeautifulSoup
import os
import urllib.request
import requests
import json
import re
import psycopg2
CODE_SELECTION = "https://leginfo.legislature.ca.gov/faces/codes.xhtml"
FULL_PATH = "https://leginfo.legislature.ca.gov"
codes = ["CIV","BPC","CCP","COM","CONS","CORP","EDC","ELEC","EVID","FAC","FAM","FGC","FIN","GOV","HNC","HSC","INS","LAB","MVC","PCC","PEN","PRC","PROB","PUC","RTC","SHC","UIC","VEH","WAT","WIC"]
DIR = os.path.dirname(os.path.realpath(__file__))
GLOBAL_ID = 0
# Total tokens: 44,132,506
# $4.4 cost total
# 178, 580 unique IDs
def main():
GLOBAL_ID = get_ID()
html_scraper()
def html_scraper():
sections = open("{}/scrapingSourceFiles/sections".format(DIR), "r")
currentCode = None
for line in sections:
if line[0] == "#":
split = line.split("-")
currentCode = split[-1].strip()
print("Starting to scrape all text from California Legal Code: {}".format(currentCode))
else:
# Temporary for scraping in chunks
#if currentCode in DONE:
#continue
response = urllib.request.urlopen("https://leginfo.legislature.ca.gov/faces/codedisplayexpand.xhtml?tocCode=CONS")
data = response.read() # a `bytes` object
text = data.decode('utf-8') # a `str`;
soup = BeautifulSoup(text,features='xml')
pretty = soup.prettify()
with open("testXML.txt","w") as write_file:
write_file.write(pretty)
write_file.close()
exit(1)
scrape(line, "{}".format(currentCode))
print("Finishided scraping Code: {}. Started at ID {} , ended at ID {}".format(currentCode, get_ID(), GLOBAL_ID))
set_ID(GLOBAL_ID)
def scrape(link, fileName):
try:
with warnings.catch_warnings():
warnings.simplefilter("ignore")
dct = scrape_sections_per_code({}, link, fileName)
with open('{}/scrapedData/{}.txt'.format(DIR, fileName), 'w') as convert_file:
convert_file.write(json.dumps(dct))
convert_file.close()
# Temporary
except Exception as exc:
print("Could not scrape articles for code {}".format(fileName))
print(exc)
exit(1)
def getHTMLdocument(url):
# request for HTML document of given url
response = requests.get(url)
# response will be provided in JSON format
return response.text
def extract_article_text(link, code):
soup = BeautifulSoup("".join(getHTMLdocument(link)), "lxml")
text = soup.get_text()
cutIndex = text.find("Code Text")
newText = text[cutIndex+10:].strip()
newText = newText[0:len(newText)-10]
firstIndex = newText.find("- {}".format(code)) + len(code) + 2
lastIndex = newText.rfind("{}".format(code), len(newText)-50)
newText = newText[firstIndex:lastIndex]
return newText
def scrape_sections_per_code(dct, current, code):
soup = BeautifulSoup("".join(getHTMLdocument(current)), "lxml")
# Key: Int - unique id, Value: List: sectionTags
# [ID: 0, Code: 1, Division: 2, Title: 3, Part:4, Chapter: 5, Article: 6, Section: 7,
# isCodeDescription: 8, text: 9, addendum: 10, embedding: 11, link: 12]
# 13 length
sectionTags = ["", code, "", "", "", "", "", "", "", "", "", "", ""]
for link in soup.find_all('a'):
path = link.get('href')
if path is None or "/faces" not in path:
continue
else:
path = "{}{}".format(FULL_PATH, path)
if "_displayText" in path:
#print("Scraping path {} for code {}".format(path, code))
# Get entirety of expanded text
articleText = extract_article_text(path, code)
isCodeDescription = get_tags_from_link(path, sectionTags)
sectionTags[12] = path
sectionTags[8] = isCodeDescription
split_sections(dct, sectionTags, articleText)
return dct
def split_sections(dct, sectionTags, text):
# [ID: 0, Code: 1, Division: 2, Title: 3, Part:4, Chapter: 5, Article: 6, Section: 7,
# isCodeDescription: 8, text: 9, addendum: 10, embedding: 11, link: 12]
global GLOBAL_ID
indexes = [m.start() for m in re.finditer('\u00a0\u00a0', text)]
left = 0
sectionID = "Header"
for i in range(1, len(indexes)):
current_index = indexes[i]
if text[current_index-1] != ".":
continue
else:
# Find last ")"
for i in range(current_index-2, 0, -1):
if text[i] == ")":
if sectionID != "Header":
sectionText = "{} {}".format(sectionID, text[left:i+1]).strip()
else:
sectionText = text[left:i+1].strip()
left = current_index+2
# Find addendum if present
addendum_index = get_addendum_index(sectionText)
if addendum_index == -1:
addendum = ""
else:
addendum = sectionText[addendum_index:]
sectionText = sectionText[0:addendum_index]
local_id = GLOBAL_ID
localSectionTags = sectionTags.copy()
localSectionTags[7] = sectionID
localSectionTags[9] = sectionText
localSectionTags[10] = addendum
localSectionTags[11] = []
key = create_key(localSectionTags[1:8])
if key in dct.keys():
if sectionText == dct[key][9]:
return
else:
newKey = key + "(Cont.)"
file = open("duplicateKeys.txt","a")
file.write("({},{},{})\n".format(newKey, key, sectionTags[12]))
file.close()
key = newKey
localSectionTags[0] = local_id
GLOBAL_ID += 1
dct[key] = localSectionTags
sectionID = text[i+1:current_index-1]
break
sectionText = "{} {}".format(sectionID, text[left:]).strip()
addendum_index = get_addendum_index(sectionText)
if addendum_index == -1:
addendum = ""
else:
addendum = sectionText[addendum_index:]
sectionText = sectionText[0:addendum_index]
local_id = GLOBAL_ID
localSectionTags = sectionTags.copy()
localSectionTags[7] = sectionID
localSectionTags[9] = sectionText
localSectionTags[10] = addendum
localSectionTags[11] = []
key = create_key(localSectionTags[1:8])
if key in dct.keys():
if sectionText == dct[key][9]:
return
else:
newKey = key + "(Cont.)"
file = open("duplicateKeys.txt","a")
file.write("({},{},{})\n".format(newKey, key, sectionTags[12]))
file.close()
key = newKey
localSectionTags[0] = local_id
GLOBAL_ID += 1
dct[key] = localSectionTags
def get_addendum_index(sectionText):
if sectionText[-1] != ")":
return -1
stack = [")"]
for i in range(len(sectionText)-2, 0, -1):
if sectionText[i] == ")":
stack.append(")")
elif sectionText[i] == "(":
stack.pop()
if len(stack) == 0:
return i
return -1
def get_tags_from_link(path, sectionTags):
# [ ID, CONS, Division, Title, Part, Chapter, Article, Section ]
codeDescription = True
sections = [x.strip(".") for x in path.split("&")]
for i in range(2, 7):
num = sections[i-1].split("=")[1]
if num != "":
codeDescription = False
sectionTags[i] = num
else:
sectionTags[i] = "0"
return codeDescription
def create_key(lst):
return "{}#{}#{}#{}#{}#{}#{}".format(*lst)
# Get and set unique section ID
def get_ID():
with open("id.txt", "r") as get_file:
ID = int(get_file.read())
get_file.close()
return ID
def set_ID(newID):
with open("id.txt", "w") as set_file:
set_file.write(str(newID))
set_file.close()
# CLEANING DATA FUNCTIONS
def removeTokenCount(code):
with open("{}/codeTexts/{}.txt".format(DIR, code), "r") as text_file:
rawText = text_file.read()
dct = json.loads(rawText)
new_dct = {}
for k,v in dct.items():
commaIndex = v.index(",")
newValue = v[commaIndex+1:]
new_dct[k] = newValue
text_file.close()
print("Finished reading {}.".format(code))
with open('{}/codeTexts/{}.txt'.format(dir, code), 'w') as write_file:
write_file.write(json.dumps(new_dct))
write_file.close()
print("Finished writing {}.".format(code))
def escape_characters(code):
bad_chars = ["'"]
with open("{}/codeTexts/{}.txt".format(DIR, code), "r") as text_file:
rawText = text_file.read()
dct = json.loads(rawText)
new_dct = {}
for k, v in dct.items():
print("old value: ", v)
new_value = v
for ch in bad_chars:
new_value = new_value.replace(ch, "\{}".format(ch))
print("new value:", new_value)
break
def strip_text(code):
print("Running strip_text for {}".format(code))
with open("{}/codeTexts/{}.txt".format(DIR, code), "r") as text_file:
rawText = text_file.read()
dct = json.loads(rawText)
new_dct = {}
for k, v in dct.items():
newValue = v.strip()
new_dct[k] = newValue
text_file.close()
with open('{}/codeTexts/{}.txt'.format(dir, code), 'w') as write_file:
write_file.write(json.dumps(new_dct))
write_file.close()
if __name__ == '__main__':
main()