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#!/usr/bin/env python |
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# -*- encoding: utf-8 -*- |
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# vim: set et sw=4 ts=4 sts=4 ff=unix fenc=utf8: |
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# Author: Binux<[email protected]> |
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# http://binux.me |
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# Created on 2012-12-17 11:07:19 |
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from __future__ import unicode_literals |
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import six |
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import copy |
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import time |
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import json |
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import logging |
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import threading |
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import tornado.ioloop |
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import tornado.httputil |
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import tornado.httpclient |
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import pyspider |
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from six.moves import http_cookies |
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from requests import cookies |
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from six.moves.urllib.parse import urljoin, urlsplit |
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from tornado.curl_httpclient import CurlAsyncHTTPClient |
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from tornado.simple_httpclient import SimpleAsyncHTTPClient |
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from pyspider.libs import utils, dataurl, counter |
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from pyspider.libs.queue import Queue as queue |
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from .cookie_utils import extract_cookies_to_jar |
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logger = logging.getLogger('fetcher') |
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class MyCurlAsyncHTTPClient(CurlAsyncHTTPClient): |
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def free_size(self): |
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return len(self._free_list) |
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def size(self): |
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return len(self._curls) - self.free_size() |
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class MySimpleAsyncHTTPClient(SimpleAsyncHTTPClient): |
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def free_size(self): |
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return self.max_clients - self.size() |
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def size(self): |
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return len(self.active) |
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fetcher_output = { |
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"status_code": int, |
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"orig_url": str, |
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"url": str, |
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"headers": dict, |
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"content": str, |
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"cookies": dict, |
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} |
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class Fetcher(object): |
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user_agent = "pyspider/%s (+http://pyspider.org/)" % pyspider.__version__ |
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default_options = { |
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'method': 'GET', |
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'headers': { |
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}, |
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'use_gzip': True, |
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'timeout': 120, |
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} |
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phantomjs_proxy = None |
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def __init__(self, inqueue, outqueue, poolsize=100, proxy=None, async=True): |
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self.inqueue = inqueue |
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self.outqueue = outqueue |
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self.poolsize = poolsize |
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self._running = False |
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self._quit = False |
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self.proxy = proxy |
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self.async = async |
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self.ioloop = tornado.ioloop.IOLoop() |
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# binding io_loop to http_client here |
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if self.async: |
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self.http_client = MyCurlAsyncHTTPClient(max_clients=self.poolsize, |
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io_loop=self.ioloop) |
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else: |
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self.http_client = tornado.httpclient.HTTPClient( |
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MyCurlAsyncHTTPClient, max_clients=self.poolsize |
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) |
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self._cnt = { |
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'5m': counter.CounterManager( |
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lambda: counter.TimebaseAverageWindowCounter(30, 10)), |
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'1h': counter.CounterManager( |
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lambda: counter.TimebaseAverageWindowCounter(60, 60)), |
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} |
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def send_result(self, type, task, result): |
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'''Send fetch result to processor''' |
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if self.outqueue: |
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try: |
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self.outqueue.put((task, result)) |
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except Exception as e: |
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logger.exception(e) |
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def fetch(self, task, callback=None): |
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'''Do one fetch''' |
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url = task.get('url', 'data:,') |
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if callback is None: |
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callback = self.send_result |
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if url.startswith('data:'): |
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return self.data_fetch(url, task, callback) |
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elif task.get('fetch', {}).get('fetch_type') in ('js', 'phantomjs'): |
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return self.phantomjs_fetch(url, task, callback) |
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else: |
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return self.http_fetch(url, task, callback) |
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def sync_fetch(self, task): |
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'''Synchronization fetch''' |
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wait_result = threading.Condition() |
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_result = {} |
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def callback(type, task, result): |
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wait_result.acquire() |
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_result['type'] = type |
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_result['task'] = task |
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_result['result'] = result |
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wait_result.notify() |
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wait_result.release() |
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wait_result.acquire() |
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self.fetch(task, callback=callback) |
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while 'result' not in _result: |
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wait_result.wait() |
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wait_result.release() |
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return _result['result'] |
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def data_fetch(self, url, task, callback): |
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'''A fake fetcher for dataurl''' |
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self.on_fetch('data', task) |
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result = {} |
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result['orig_url'] = url |
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result['content'] = dataurl.decode(url) |
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result['headers'] = {} |
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result['status_code'] = 200 |
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result['url'] = url |
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result['cookies'] = {} |
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result['time'] = 0 |
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result['save'] = task.get('fetch', {}).get('save') |
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if len(result['content']) < 70: |
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logger.info("[200] %s:%s %s 0s", task.get('project'), task.get('taskid'), url) |
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else: |
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logger.info( |
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"[200] %s:%s data:,%s...[content:%d] 0s", |
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task.get('project'), task.get('taskid'), |
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result['content'][:70], |
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len(result['content']) |
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) |
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callback('data', task, result) |
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self.on_result('data', task, result) |
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return task, result |
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def handle_error(self, type, url, task, start_time, callback, error): |
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result = { |
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'status_code': getattr(error, 'code', 599), |
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'error': utils.text(error), |
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'content': "", |
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'time': time.time() - start_time, |
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'orig_url': url, |
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'url': url, |
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} |
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logger.error("[%d] %s:%s %s, %r %.2fs", |
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result['status_code'], task.get('project'), task.get('taskid'), |
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url, error, result['time']) |
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callback(type, task, result) |
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self.on_result(type, task, result) |
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return task, result |
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allowed_options = ['method', 'data', 'timeout', 'cookies', 'use_gzip', 'validate_cert'] |
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def http_fetch(self, url, task, callback): |
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'''HTTP fetcher''' |
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start_time = time.time() |
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self.on_fetch('http', task) |
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fetch = copy.deepcopy(self.default_options) |
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fetch['url'] = url |
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fetch['headers'] = tornado.httputil.HTTPHeaders(fetch['headers']) |
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fetch['headers']['User-Agent'] = self.user_agent |
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task_fetch = task.get('fetch', {}) |
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for each in self.allowed_options: |
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if each in task_fetch: |
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fetch[each] = task_fetch[each] |
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fetch['headers'].update(task_fetch.get('headers', {})) |
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if task.get('track'): |
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track_headers = tornado.httputil.HTTPHeaders( |
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task.get('track', {}).get('fetch', {}).get('headers') or {}) |
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track_ok = task.get('track', {}).get('process', {}).get('ok', False) |
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else: |
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track_headers = {} |
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track_ok = False |
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# proxy |
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proxy_string = None |
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if isinstance(task_fetch.get('proxy'), six.string_types): |
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proxy_string = task_fetch['proxy'] |
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elif self.proxy and task_fetch.get('proxy', True): |
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proxy_string = self.proxy |
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if proxy_string: |
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if '://' not in proxy_string: |
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proxy_string = 'http://' + proxy_string |
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proxy_splited = urlsplit(proxy_string) |
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if proxy_splited.username: |
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fetch['proxy_username'] = proxy_splited.username |
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if six.PY2: |
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fetch['proxy_username'] = fetch['proxy_username'].encode('utf8') |
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if proxy_splited.password: |
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fetch['proxy_password'] = proxy_splited.password |
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if six.PY2: |
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fetch['proxy_password'] = fetch['proxy_password'].encode('utf8') |
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fetch['proxy_host'] = proxy_splited.hostname.encode('utf8') |
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if six.PY2: |
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fetch['proxy_host'] = fetch['proxy_host'].encode('utf8') |
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fetch['proxy_port'] = proxy_splited.port or 8080 |
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# etag |
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if task_fetch.get('etag', True): |
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_t = None |
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if isinstance(task_fetch.get('etag'), six.string_types): |
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_t = task_fetch.get('etag') |
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elif track_ok: |
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_t = track_headers.get('etag') |
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if _t: |
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fetch['headers'].setdefault('If-None-Match', _t) |
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# last modifed |
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if task_fetch.get('last_modified', True): |
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_t = None |
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if isinstance(task_fetch.get('last_modifed'), six.string_types): |
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_t = task_fetch.get('last_modifed') |
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elif track_ok: |
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_t = track_headers.get('last-modified') |
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if _t: |
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fetch['headers'].setdefault('If-Modified-Since', _t) |
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session = cookies.RequestsCookieJar() |
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# fix for tornado request obj |
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if 'Cookie' in fetch['headers']: |
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c = http_cookies.SimpleCookie() |
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try: |
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c.load(fetch['headers']['Cookie']) |
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except AttributeError: |
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c.load(utils.utf8(fetch['headers']['Cookie'])) |
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for key in c: |
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session.set(key, c[key]) |
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del fetch['headers']['Cookie'] |
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fetch['follow_redirects'] = False |
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if 'timeout' in fetch: |
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fetch['connect_timeout'] = fetch['request_timeout'] = fetch['timeout'] |
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del fetch['timeout'] |
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if 'data' in fetch: |
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fetch['body'] = fetch['data'] |
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del fetch['data'] |
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if 'cookies' in fetch: |
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session.update(fetch['cookies']) |
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del fetch['cookies'] |
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store = {} |
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store['max_redirects'] = task_fetch.get('max_redirects', 5) |
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def handle_response(response): |
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extract_cookies_to_jar(session, response.request, response.headers) |
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if (response.code in (301, 302, 303, 307) |
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and response.headers.get('Location') |
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and task_fetch.get('allow_redirects', True)): |
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if store['max_redirects'] <= 0: |
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error = tornado.httpclient.HTTPError( |
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599, 'Maximum (%d) redirects followed' % task_fetch.get('max_redirects', 5), |
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response) |
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return handle_error(error) |
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if response.code in (302, 303): |
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fetch['method'] = 'GET' |
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if 'body' in fetch: |
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del fetch['body'] |
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fetch['url'] = urljoin(fetch['url'], response.headers['Location']) |
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fetch['request_timeout'] -= time.time() - start_time |
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if fetch['request_timeout'] < 0: |
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fetch['request_timeout'] = 0.1 |
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fetch['connect_timeout'] = fetch['request_timeout'] |
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store['max_redirects'] -= 1 |
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return make_request(fetch) |
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result = {} |
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result['orig_url'] = url |
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result['content'] = response.body or '' |
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result['headers'] = dict(response.headers) |
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result['status_code'] = response.code |
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result['url'] = response.effective_url or url |
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result['cookies'] = session.get_dict() |
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result['time'] = time.time() - start_time |
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result['save'] = task_fetch.get('save') |
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if response.error: |
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result['error'] = utils.text(response.error) |
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if 200 <= response.code < 300: |
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logger.info("[%d] %s:%s %s %.2fs", response.code, |
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task.get('project'), task.get('taskid'), |
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url, result['time']) |
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else: |
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logger.warning("[%d] %s:%s %s %.2fs", response.code, |
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task.get('project'), task.get('taskid'), |
|
311
|
|
|
url, result['time']) |
|
312
|
|
|
callback('http', task, result) |
|
313
|
|
|
self.on_result('http', task, result) |
|
314
|
|
|
return task, result |
|
315
|
|
|
|
|
316
|
|
|
handle_error = lambda x: self.handle_error('http', |
|
317
|
|
|
url, task, start_time, callback, x) |
|
318
|
|
|
|
|
319
|
|
|
def make_request(fetch): |
|
320
|
|
|
try: |
|
321
|
|
|
request = tornado.httpclient.HTTPRequest(**fetch) |
|
322
|
|
|
cookie_header = cookies.get_cookie_header(session, request) |
|
323
|
|
|
if cookie_header: |
|
324
|
|
|
request.headers['Cookie'] = cookie_header |
|
325
|
|
|
if self.async: |
|
326
|
|
|
self.http_client.fetch(request, handle_response) |
|
327
|
|
|
else: |
|
328
|
|
|
return handle_response(self.http_client.fetch(request)) |
|
329
|
|
|
except tornado.httpclient.HTTPError as e: |
|
330
|
|
|
if e.response: |
|
331
|
|
|
return handle_response(e.response) |
|
332
|
|
|
else: |
|
333
|
|
|
return handle_error(e) |
|
334
|
|
|
except Exception as e: |
|
335
|
|
|
logger.exception(fetch) |
|
336
|
|
|
return handle_error(e) |
|
337
|
|
|
|
|
338
|
|
|
return make_request(fetch) |
|
339
|
|
|
|
|
340
|
|
|
def phantomjs_fetch(self, url, task, callback): |
|
341
|
|
|
'''Fetch with phantomjs proxy''' |
|
342
|
|
|
start_time = time.time() |
|
343
|
|
|
|
|
344
|
|
|
self.on_fetch('phantomjs', task) |
|
345
|
|
|
if not self.phantomjs_proxy: |
|
346
|
|
|
result = { |
|
347
|
|
|
"orig_url": url, |
|
348
|
|
|
"content": "phantomjs is not enabled.", |
|
349
|
|
|
"headers": {}, |
|
350
|
|
|
"status_code": 501, |
|
351
|
|
|
"url": url, |
|
352
|
|
|
"cookies": {}, |
|
353
|
|
|
"time": 0, |
|
354
|
|
|
"save": task.get('fetch', {}).get('save') |
|
355
|
|
|
} |
|
356
|
|
|
logger.warning("[501] %s:%s %s 0s", task.get('project'), task.get('taskid'), url) |
|
357
|
|
|
callback('http', task, result) |
|
358
|
|
|
self.on_result('http', task, result) |
|
359
|
|
|
return task, result |
|
360
|
|
|
|
|
361
|
|
|
request_conf = { |
|
362
|
|
|
'follow_redirects': False |
|
363
|
|
|
} |
|
364
|
|
|
|
|
365
|
|
|
fetch = copy.deepcopy(self.default_options) |
|
366
|
|
|
fetch['url'] = url |
|
367
|
|
|
fetch['headers'] = tornado.httputil.HTTPHeaders(fetch['headers']) |
|
368
|
|
|
fetch['headers']['User-Agent'] = self.user_agent |
|
369
|
|
|
task_fetch = task.get('fetch', {}) |
|
370
|
|
|
for each in task_fetch: |
|
371
|
|
|
if each != 'headers': |
|
372
|
|
|
fetch[each] = task_fetch[each] |
|
373
|
|
|
fetch['headers'].update(task_fetch.get('headers', {})) |
|
374
|
|
|
|
|
375
|
|
|
if 'timeout' in fetch: |
|
376
|
|
|
request_conf['connect_timeout'] = fetch['timeout'] |
|
377
|
|
|
request_conf['request_timeout'] = fetch['timeout'] + 1 |
|
378
|
|
|
|
|
379
|
|
|
session = cookies.RequestsCookieJar() |
|
380
|
|
|
request = tornado.httpclient.HTTPRequest(url=fetch['url']) |
|
381
|
|
|
if fetch.get('cookies'): |
|
382
|
|
|
session.update(fetch['cookies']) |
|
383
|
|
|
if 'Cookie' in request.headers: |
|
384
|
|
|
del request.headers['Cookie'] |
|
385
|
|
|
fetch['headers']['Cookie'] = cookies.get_cookie_header(session, request) |
|
386
|
|
|
|
|
387
|
|
|
def handle_response(response): |
|
388
|
|
|
if not response.body: |
|
389
|
|
|
return handle_error(Exception('no response from phantomjs')) |
|
390
|
|
|
|
|
391
|
|
|
try: |
|
392
|
|
|
result = json.loads(utils.text(response.body)) |
|
393
|
|
|
if response.error: |
|
394
|
|
|
result['error'] = utils.text(response.error) |
|
395
|
|
|
except Exception as e: |
|
396
|
|
|
return handle_error(e) |
|
397
|
|
|
|
|
398
|
|
|
if result.get('status_code', 200): |
|
399
|
|
|
logger.info("[%d] %s:%s %s %.2fs", result['status_code'], |
|
400
|
|
|
task.get('project'), task.get('taskid'), url, result['time']) |
|
401
|
|
|
else: |
|
402
|
|
|
logger.error("[%d] %s:%s %s, %r %.2fs", result['status_code'], |
|
403
|
|
|
task.get('project'), task.get('taskid'), |
|
404
|
|
|
url, result['content'], result['time']) |
|
405
|
|
|
callback('phantomjs', task, result) |
|
406
|
|
|
self.on_result('phantomjs', task, result) |
|
407
|
|
|
return task, result |
|
408
|
|
|
|
|
409
|
|
|
handle_error = lambda x: self.handle_error('phantomjs', |
|
410
|
|
|
url, task, start_time, callback, x) |
|
411
|
|
|
|
|
412
|
|
|
fetch['headers'] = dict(fetch['headers']) |
|
413
|
|
|
try: |
|
414
|
|
|
request = tornado.httpclient.HTTPRequest( |
|
415
|
|
|
url="%s" % self.phantomjs_proxy, method="POST", |
|
416
|
|
|
body=json.dumps(fetch), **request_conf) |
|
417
|
|
|
if self.async: |
|
418
|
|
|
self.http_client.fetch(request, handle_response) |
|
419
|
|
|
else: |
|
420
|
|
|
return handle_response(self.http_client.fetch(request)) |
|
421
|
|
|
except tornado.httpclient.HTTPError as e: |
|
422
|
|
|
if e.response: |
|
423
|
|
|
return handle_response(e.response) |
|
424
|
|
|
else: |
|
425
|
|
|
return handle_error(e) |
|
426
|
|
|
except Exception as e: |
|
427
|
|
|
return handle_error(e) |
|
428
|
|
|
|
|
429
|
|
|
def run(self): |
|
430
|
|
|
'''Run loop''' |
|
431
|
|
|
logger.info("fetcher starting...") |
|
432
|
|
|
|
|
433
|
|
|
def queue_loop(): |
|
434
|
|
|
if not self.outqueue or not self.inqueue: |
|
435
|
|
|
return |
|
436
|
|
|
while not self._quit: |
|
437
|
|
|
try: |
|
438
|
|
|
if self.outqueue.full(): |
|
439
|
|
|
break |
|
440
|
|
|
if self.http_client.free_size() <= 0: |
|
441
|
|
|
break |
|
442
|
|
|
task = self.inqueue.get_nowait() |
|
443
|
|
|
# FIXME: decode unicode_obj should used after data selete from |
|
444
|
|
|
# database, it's used here for performance |
|
445
|
|
|
task = utils.decode_unicode_obj(task) |
|
446
|
|
|
self.fetch(task) |
|
447
|
|
|
except queue.Empty: |
|
448
|
|
|
break |
|
449
|
|
|
except KeyboardInterrupt: |
|
450
|
|
|
break |
|
451
|
|
|
except Exception as e: |
|
452
|
|
|
logger.exception(e) |
|
453
|
|
|
break |
|
454
|
|
|
|
|
455
|
|
|
tornado.ioloop.PeriodicCallback(queue_loop, 100, io_loop=self.ioloop).start() |
|
456
|
|
|
self._running = True |
|
457
|
|
|
|
|
458
|
|
|
try: |
|
459
|
|
|
self.ioloop.start() |
|
460
|
|
|
except KeyboardInterrupt: |
|
461
|
|
|
pass |
|
462
|
|
|
|
|
463
|
|
|
logger.info("fetcher exiting...") |
|
464
|
|
|
|
|
465
|
|
|
def quit(self): |
|
466
|
|
|
'''Quit fetcher''' |
|
467
|
|
|
self._running = False |
|
468
|
|
|
self._quit = True |
|
469
|
|
|
self.ioloop.stop() |
|
470
|
|
|
|
|
471
|
|
|
def size(self): |
|
472
|
|
|
return self.http_client.size() |
|
473
|
|
|
|
|
474
|
|
|
def xmlrpc_run(self, port=24444, bind='127.0.0.1', logRequests=False): |
|
475
|
|
|
'''Run xmlrpc server''' |
|
476
|
|
|
import umsgpack |
|
477
|
|
|
try: |
|
478
|
|
|
from xmlrpc.server import SimpleXMLRPCServer |
|
479
|
|
|
from xmlrpc.client import Binary |
|
480
|
|
|
except ImportError: |
|
481
|
|
|
from SimpleXMLRPCServer import SimpleXMLRPCServer |
|
482
|
|
|
from xmlrpclib import Binary |
|
483
|
|
|
|
|
484
|
|
|
server = SimpleXMLRPCServer((bind, port), allow_none=True, logRequests=logRequests) |
|
485
|
|
|
server.register_introspection_functions() |
|
486
|
|
|
server.register_multicall_functions() |
|
487
|
|
|
|
|
488
|
|
|
server.register_function(self.quit, '_quit') |
|
489
|
|
|
server.register_function(self.size) |
|
490
|
|
|
|
|
491
|
|
|
def sync_fetch(task): |
|
492
|
|
|
result = self.sync_fetch(task) |
|
493
|
|
|
result = Binary(umsgpack.packb(result)) |
|
494
|
|
|
return result |
|
495
|
|
|
server.register_function(sync_fetch, 'fetch') |
|
496
|
|
|
|
|
497
|
|
|
def dump_counter(_time, _type): |
|
498
|
|
|
return self._cnt[_time].to_dict(_type) |
|
499
|
|
|
server.register_function(dump_counter, 'counter') |
|
500
|
|
|
|
|
501
|
|
|
server.timeout = 0.5 |
|
502
|
|
|
while not self._quit: |
|
503
|
|
|
server.handle_request() |
|
504
|
|
|
server.server_close() |
|
505
|
|
|
|
|
506
|
|
|
def on_fetch(self, type, task): |
|
507
|
|
|
'''Called before task fetch''' |
|
508
|
|
|
pass |
|
509
|
|
|
|
|
510
|
|
|
def on_result(self, type, task, result): |
|
511
|
|
|
'''Called after task fetched''' |
|
512
|
|
|
status_code = result.get('status_code', 599) |
|
513
|
|
|
if status_code != 599: |
|
514
|
|
|
status_code = (int(status_code) / 100 * 100) |
|
515
|
|
|
self._cnt['5m'].event((task.get('project'), status_code), +1) |
|
516
|
|
|
self._cnt['1h'].event((task.get('project'), status_code), +1) |
|
517
|
|
|
|
|
518
|
|
|
if type == 'http' and result.get('time'): |
|
519
|
|
|
content_len = len(result.get('content', '')) |
|
520
|
|
|
self._cnt['5m'].event((task.get('project'), 'speed'), |
|
521
|
|
|
float(content_len) / result.get('time')) |
|
522
|
|
|
self._cnt['1h'].event((task.get('project'), 'speed'), |
|
523
|
|
|
float(content_len) / result.get('time')) |
|
524
|
|
|
self._cnt['5m'].event((task.get('project'), 'time'), result.get('time')) |
|
525
|
|
|
self._cnt['1h'].event((task.get('project'), 'time'), result.get('time')) |
|
526
|
|
|
|
binux /
pyspider
