#!/usr/bin/env python3 from http.server import SimpleHTTPRequestHandler,HTTPServer import socket import csv import sys import tempfile import threading import os import gzip import traceback import urllib.request import subprocess import lzma def get_local_port(host): with socket.socket() as fd: fd.bind((host, 0)) return fd.getsockname()[1] CLICKHOUSE_HOST = os.environ.get('CLICKHOUSE_HOST', '127.0.0.1') CLICKHOUSE_PORT_HTTP = os.environ.get('CLICKHOUSE_PORT_HTTP', '8123') ##################################################################################### # This test starts an HTTP server and serves data to clickhouse url-engine based table. # The main goal of this test is checking that compress methods are working. # In order for it to work ip+port of http server (given below) should be # accessible from clickhouse server. ##################################################################################### # IP-address of this host accessible from outside world. HTTP_SERVER_HOST = subprocess.check_output(['hostname', '-i']).decode('utf-8').strip() HTTP_SERVER_PORT = get_local_port(HTTP_SERVER_HOST) # IP address and port of the HTTP server started from this script. HTTP_SERVER_ADDRESS = (HTTP_SERVER_HOST, HTTP_SERVER_PORT) HTTP_SERVER_URL_STR = 'http://' + ':'.join(str(s) for s in HTTP_SERVER_ADDRESS) + "/" # Because we need to check content of file.csv we can create this content and avoid reading csv CSV_DATA = "Hello, 1\nWorld, 2\nThis, 152\nis, 9283\ntesting, 2313213\ndata, 555\n" # Choose compression method # (Will change during test, need to check standart data sending, to make sure that nothing broke) COMPRESS_METHOD = 'none' ADDING_ENDING = '' ENDINGS = ['.gz', '.xz'] SEND_ENCODING = True def get_ch_answer(query): url = os.environ.get('CLICKHOUSE_URL', 'http://{host}:{port}'.format(host=CLICKHOUSE_HOST, port=CLICKHOUSE_PORT_HTTP)) return urllib.request.urlopen(url, data=query.encode()).read().decode() def check_answers(query, answer): ch_answer = get_ch_answer(query) if ch_answer.strip() != answer.strip(): print("FAIL on query:", query, file=sys.stderr) print("Expected answer:", answer, file=sys.stderr) print("Fetched answer :", ch_answer, file=sys.stderr) raise Exception("Fail on query") # Server with head method which is useful for debuging by hands class HttpProcessor(SimpleHTTPRequestHandler): def _set_headers(self): self.send_response(200) if SEND_ENCODING: self.send_header('Content-Encoding', COMPRESS_METHOD) if COMPRESS_METHOD == 'none': self.send_header('Content-Length', len(CSV_DATA.encode())) else: self.compress_data() self.send_header('Content-Length', len(self.data)) self.send_header('Content-Type', 'text/csv') self.end_headers() def do_HEAD(self): self._set_headers() return def compress_data(self): if COMPRESS_METHOD == 'gzip': self.data = gzip.compress((CSV_DATA).encode()) elif COMPRESS_METHOD == 'lzma': self.data = lzma.compress((CSV_DATA).encode()) else: self.data = 'WRONG CONVERSATION'.encode() def do_GET(self): self._set_headers() if COMPRESS_METHOD == 'none': self.wfile.write(CSV_DATA.encode()) else: self.wfile.write(self.data) return def log_message(self, format, *args): return def start_server(requests_amount): httpd = HTTPServer(HTTP_SERVER_ADDRESS, HttpProcessor) def real_func(): for i in range(requests_amount): httpd.handle_request() t = threading.Thread(target=real_func) return t ##################################################################### # Testing area. ##################################################################### def test_select(dict_name="", schema="word String, counter UInt32", requests=[], answers=[], test_data=""): global ADDING_ENDING global SEND_ENCODING global COMPRESS_METHOD for i in range(len(requests)): if i > 2: ADDING_ENDING = ENDINGS[i-3] SEND_ENCODING = False if dict_name: get_ch_answer("drop dictionary if exists {}".format(dict_name)) get_ch_answer('''CREATE DICTIONARY {} ({}) PRIMARY KEY word SOURCE(HTTP(url '{}' format 'CSV')) LAYOUT(complex_key_hashed()) LIFETIME(0)'''.format(dict_name, schema, HTTP_SERVER_URL_STR+'/test.csv' + ADDING_ENDING)) COMPRESS_METHOD = requests[i] print(i, COMPRESS_METHOD, ADDING_ENDING, SEND_ENCODING) check_answers("select * from {}".format(dict_name), answers[i]) def main(): # first three for encoding, second three for url insert_requests = [ 'none', 'gzip', 'lzma', 'gzip', 'lzma' ] # This answers got experemently in non compressed mode and they are correct answers = ['''This 152\nHello 1\nis 9283\ndata 555\nWorld 2\ntesting 2313213'''] * 5 t = start_server(len(insert_requests)) t.start() test_select(dict_name="test_table_select", requests=insert_requests, answers=answers) t.join() print("PASSED") if __name__ == "__main__": try: main() except Exception as ex: exc_type, exc_value, exc_traceback = sys.exc_info() traceback.print_tb(exc_traceback, file=sys.stderr) print(ex, file=sys.stderr) sys.stderr.flush() os._exit(1)