62 lines
1.8 KiB
Python
62 lines
1.8 KiB
Python
import os
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import sqlite3
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from cfg import config
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if(not config["use_sqlite"]):
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import pymysql
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from proxy import fetch_proxies
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def get_cache():
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if(config["use_sqlite"]):
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directory = config["sqlite_cache_directory"]
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name = config["sqlite_cache_name"]
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cache_file = os.path.join(directory, "{}.sqlite".format(name))
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if(not os.path.exists(cache_file)):
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with open(cache_file, "w") as fin:
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pass
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db = sqlite3.connect(cache_file)
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cursor = db.cursor()
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cursor.execute("CREATE TABLE proxies(proxy TEXT, lasttime_could_not_be_used DECIMAL)")
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cursor.execute("CREATE TABLE links(source INT, destination INT)")
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cursor.execute("CREATE TABLE dijkstra_helper(page INT UNIQUE, value INT)")
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cursor.execute("CREATE TABLE failed_to_fetch(page INT, depth INT)")
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cursor.execute("CREATE TABLE pages(title TEXT)")
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db.commit()
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db = sqlite3.connect(cache_file)
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fetch_proxies(db)
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return db
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db = pymysql.connect(
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host=config["mysql_server"]
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, user=config["mysql_user"]
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, password=config["mysql_password"]
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, db=config["mysql_database"]
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, charset="utf8mb4")
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cursor = db.cursor()
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cursor.execute("CREATE TABLE IF NOT EXISTS proxies(proxy varchar(100), lasttime_could_not_be_used DECIMAL)")
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cursor.execute("CREATE TABLE IF NOT EXISTS links(source INT, destination INT)")
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cursor.execute("CREATE TABLE IF NOT EXISTS dijkstra_helper(page INT UNIQUE, value INT)")
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cursor.execute("CREATE TABLE IF NOT EXISTS failed_to_fetch(page INT, depth INT)")
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cursor.execute('''CREATE TABLE IF NOT EXISTS
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pages(
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title varchar(400) CHARACTER SET utf8mb4
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, page_id INT AUTO_INCREMENT
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, PRIMARY KEY(page_id)
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)''')
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db.commit()
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fetch_proxies(db)
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return db
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def clear_cache_data(connection):
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cursor = connection.cursor()
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cursor.execute("DELETE FROM links")
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cursor.execute("DELETE FROM dijkstra_helper")
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connection.commit()
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