INSTRUCTION stringlengths 1 46.3k | RESPONSE stringlengths 75 80.2k |
|---|---|
Get a task from queue when bucket available | def get(self):
'''Get a task from queue when bucket available'''
if self.bucket.get() < 1:
return None
now = time.time()
self.mutex.acquire()
try:
task = self.priority_queue.get_nowait()
self.bucket.desc()
except Queue.Empty:
... |
Mark task done | def done(self, taskid):
'''Mark task done'''
if taskid in self.processing:
self.mutex.acquire()
if taskid in self.processing:
del self.processing[taskid]
self.mutex.release()
return True
return False |
return True if taskid is in processing | def is_processing(self, taskid):
'''
return True if taskid is in processing
'''
return taskid in self.processing and self.processing[taskid].taskid |
handler the log records to formatted string | def logstr(self):
"""handler the log records to formatted string"""
result = []
formater = LogFormatter(color=False)
for record in self.logs:
if isinstance(record, six.string_types):
result.append(pretty_unicode(record))
else:
if r... |
Deal one task | def on_task(self, task, response):
'''Deal one task'''
start_time = time.time()
response = rebuild_response(response)
try:
assert 'taskid' in task, 'need taskid in task'
project = task['project']
updatetime = task.get('project_updatetime', None)
... |
Run loop | def run(self):
'''Run loop'''
logger.info("processor starting...")
while not self._quit:
try:
task, response = self.inqueue.get(timeout=1)
self.on_task(task, response)
self._exceptions = 0
except Queue.Empty as e:
... |
create connection to message queue
name:
name of message queue
rabbitmq:
amqp://username:password@host:5672/%2F
see https://www.rabbitmq.com/uri-spec.html
beanstalk:
beanstalk://host:11300/
redis:
redis://host:6379/db
redis://host1:port1,host2:port2,...,... | def connect_message_queue(name, url=None, maxsize=0, lazy_limit=True):
"""
create connection to message queue
name:
name of message queue
rabbitmq:
amqp://username:password@host:5672/%2F
see https://www.rabbitmq.com/uri-spec.html
beanstalk:
beanstalk://host:11300/
... |
Hide stack traceback of given stack | def hide_me(tb, g=globals()):
"""Hide stack traceback of given stack"""
base_tb = tb
try:
while tb and tb.tb_frame.f_globals is not g:
tb = tb.tb_next
while tb and tb.tb_frame.f_globals is g:
tb = tb.tb_next
except Exception as e:
logging.exception(e)
... |
Run function in subprocess, return a Process object | def run_in_subprocess(func, *args, **kwargs):
"""Run function in subprocess, return a Process object"""
from multiprocessing import Process
thread = Process(target=func, args=args, kwargs=kwargs)
thread.daemon = True
thread.start()
return thread |
Formats the given date (which should be GMT).
By default, we return a relative time (e.g., "2 minutes ago"). You
can return an absolute date string with ``relative=False``.
You can force a full format date ("July 10, 1980") with
``full_format=True``.
This method is primarily intended for dates in... | def format_date(date, gmt_offset=0, relative=True, shorter=False, full_format=False):
"""Formats the given date (which should be GMT).
By default, we return a relative time (e.g., "2 minutes ago"). You
can return an absolute date string with ``relative=False``.
You can force a full format date ("July ... |
Make sure string is utf8 encoded bytes.
If parameter is a object, object.__str__ will been called before encode as bytes | def utf8(string):
"""
Make sure string is utf8 encoded bytes.
If parameter is a object, object.__str__ will been called before encode as bytes
"""
if isinstance(string, six.text_type):
return string.encode('utf8')
elif isinstance(string, six.binary_type):
return string
else:... |
Make sure string is unicode type, decode with given encoding if it's not.
If parameter is a object, object.__str__ will been called | def text(string, encoding='utf8'):
"""
Make sure string is unicode type, decode with given encoding if it's not.
If parameter is a object, object.__str__ will been called
"""
if isinstance(string, six.text_type):
return string
elif isinstance(string, six.binary_type):
return str... |
Make sure string is unicode, try to decode with utf8, or unicode escaped string if failed. | def pretty_unicode(string):
"""
Make sure string is unicode, try to decode with utf8, or unicode escaped string if failed.
"""
if isinstance(string, six.text_type):
return string
try:
return string.decode("utf8")
except UnicodeDecodeError:
return string.decode('Latin-1').... |
Make sure string is unicode, try to default with utf8, or base64 if failed.
can been decode by `decode_unicode_string` | def unicode_string(string):
"""
Make sure string is unicode, try to default with utf8, or base64 if failed.
can been decode by `decode_unicode_string`
"""
if isinstance(string, six.text_type):
return string
try:
return string.decode("utf8")
except UnicodeDecodeError:
... |
Make sure keys and values of dict is unicode. | def unicode_dict(_dict):
"""
Make sure keys and values of dict is unicode.
"""
r = {}
for k, v in iteritems(_dict):
r[unicode_obj(k)] = unicode_obj(v)
return r |
Make sure keys and values of dict/list/tuple is unicode. bytes will encode in base64.
Can been decode by `decode_unicode_obj` | def unicode_obj(obj):
"""
Make sure keys and values of dict/list/tuple is unicode. bytes will encode in base64.
Can been decode by `decode_unicode_obj`
"""
if isinstance(obj, dict):
return unicode_dict(obj)
elif isinstance(obj, (list, tuple)):
return unicode_list(obj)
elif i... |
Decode string encoded by `unicode_string` | def decode_unicode_string(string):
"""
Decode string encoded by `unicode_string`
"""
if string.startswith('[BASE64-DATA]') and string.endswith('[/BASE64-DATA]'):
return base64.b64decode(string[len('[BASE64-DATA]'):-len('[/BASE64-DATA]')])
return string |
Decode unicoded dict/list/tuple encoded by `unicode_obj` | def decode_unicode_obj(obj):
"""
Decode unicoded dict/list/tuple encoded by `unicode_obj`
"""
if isinstance(obj, dict):
r = {}
for k, v in iteritems(obj):
r[decode_unicode_string(k)] = decode_unicode_obj(v)
return r
elif isinstance(obj, six.string_types):
... |
Load object from module | def load_object(name):
"""Load object from module"""
if "." not in name:
raise Exception('load object need module.object')
module_name, object_name = name.rsplit('.', 1)
if six.PY2:
module = __import__(module_name, globals(), locals(), [utf8(object_name)], -1)
else:
module ... |
Return a interactive python console instance with caller's stack | def get_python_console(namespace=None):
"""
Return a interactive python console instance with caller's stack
"""
if namespace is None:
import inspect
frame = inspect.currentframe()
caller = frame.f_back
if not caller:
logging.error("can't find caller who star... |
Start a interactive python console with caller's stack | def python_console(namespace=None):
"""Start a interactive python console with caller's stack"""
if namespace is None:
import inspect
frame = inspect.currentframe()
caller = frame.f_back
if not caller:
logging.error("can't find caller who start this console.")
... |
XMLRPC service for windmill browser core to communicate with | def handler(self, environ, start_response):
"""XMLRPC service for windmill browser core to communicate with"""
if environ['REQUEST_METHOD'] == 'POST':
return self.handle_POST(environ, start_response)
else:
start_response("400 Bad request", [('Content-Type', 'text/plain')... |
Handles the HTTP POST request.
Attempts to interpret all HTTP POST requests as XML-RPC calls,
which are forwarded to the server's _dispatch method for handling.
Most code taken from SimpleXMLRPCServer with modifications for wsgi and my custom dispatcher. | def handle_POST(self, environ, start_response):
"""Handles the HTTP POST request.
Attempts to interpret all HTTP POST requests as XML-RPC calls,
which are forwarded to the server's _dispatch method for handling.
Most code taken from SimpleXMLRPCServer with modifications for wsgi and my... |
create database object by url
mysql:
mysql+type://user:passwd@host:port/database
sqlite:
# relative path
sqlite+type:///path/to/database.db
# absolute path
sqlite+type:////path/to/database.db
# memory database
sqlite+type://
mongodb:
mongodb+t... | def connect_database(url):
"""
create database object by url
mysql:
mysql+type://user:passwd@host:port/database
sqlite:
# relative path
sqlite+type:///path/to/database.db
# absolute path
sqlite+type:////path/to/database.db
# memory database
sqlite... |
Check project update | def _update_projects(self):
'''Check project update'''
now = time.time()
if (
not self._force_update_project
and self._last_update_project + self.UPDATE_PROJECT_INTERVAL > now
):
return
for project in self.projectdb.check_update(self._l... |
update one project | def _update_project(self, project):
'''update one project'''
if project['name'] not in self.projects:
self.projects[project['name']] = Project(self, project)
else:
self.projects[project['name']].update(project)
project = self.projects[project['name']]
if... |
load tasks from database | def _load_tasks(self, project):
'''load tasks from database'''
task_queue = project.task_queue
for task in self.taskdb.load_tasks(
self.taskdb.ACTIVE, project.name, self.scheduler_task_fields
):
taskid = task['taskid']
_schedule = task.get('schedu... |
return False if any of 'taskid', 'project', 'url' is not in task dict
or project in not in task_queue | def task_verify(self, task):
'''
return False if any of 'taskid', 'project', 'url' is not in task dict
or project in not in task_queue
'''
for each in ('taskid', 'project', 'url', ):
if each not in task or not task[each]:
logger.error('... |
put task to task queue | def put_task(self, task):
'''put task to task queue'''
_schedule = task.get('schedule', self.default_schedule)
self.projects[task['project']].task_queue.put(
task['taskid'],
priority=_schedule.get('priority', self.default_schedule['priority']),
exetime=_schedu... |
dispatch task to fetcher
out queue may have size limit to prevent block, a send_buffer is used | def send_task(self, task, force=True):
'''
dispatch task to fetcher
out queue may have size limit to prevent block, a send_buffer is used
'''
try:
self.out_queue.put_nowait(task)
except Queue.Full:
if force:
self._send_buffer.appen... |
Check status queue | def _check_task_done(self):
'''Check status queue'''
cnt = 0
try:
while True:
task = self.status_queue.get_nowait()
# check _on_get_info result here
if task.get('taskid') == '_on_get_info' and 'project' in task and 'track' in task:
... |
Check new task queue | def _check_request(self):
'''Check new task queue'''
# check _postpone_request first
todo = []
for task in self._postpone_request:
if task['project'] not in self.projects:
continue
if self.projects[task['project']].task_queue.is_processing(task['ta... |
Check projects cronjob tick, return True when a new tick is sended | def _check_cronjob(self):
"""Check projects cronjob tick, return True when a new tick is sended"""
now = time.time()
self._last_tick = int(self._last_tick)
if now - self._last_tick < 1:
return False
self._last_tick += 1
for project in itervalues(self.projects)... |
Select task to fetch & process | def _check_select(self):
'''Select task to fetch & process'''
while self._send_buffer:
_task = self._send_buffer.pop()
try:
# use force=False here to prevent automatic send_buffer append and get exception
self.send_task(_task, False)
ex... |
Dump counters to file | def _dump_cnt(self):
'''Dump counters to file'''
self._cnt['1h'].dump(os.path.join(self.data_path, 'scheduler.1h'))
self._cnt['1d'].dump(os.path.join(self.data_path, 'scheduler.1d'))
self._cnt['all'].dump(os.path.join(self.data_path, 'scheduler.all')) |
Dump counters every 60 seconds | def _try_dump_cnt(self):
'''Dump counters every 60 seconds'''
now = time.time()
if now - self._last_dump_cnt > 60:
self._last_dump_cnt = now
self._dump_cnt()
self._print_counter_log() |
Check project delete | def _check_delete(self):
'''Check project delete'''
now = time.time()
for project in list(itervalues(self.projects)):
if project.db_status != 'STOP':
continue
if now - project.updatetime < self.DELETE_TIME:
continue
if 'delete' ... |
Set quit signal | def quit(self):
'''Set quit signal'''
self._quit = True
# stop xmlrpc server
if hasattr(self, 'xmlrpc_server'):
self.xmlrpc_ioloop.add_callback(self.xmlrpc_server.stop)
self.xmlrpc_ioloop.add_callback(self.xmlrpc_ioloop.stop) |
comsume queues and feed tasks to fetcher, once | def run_once(self):
'''comsume queues and feed tasks to fetcher, once'''
self._update_projects()
self._check_task_done()
self._check_request()
while self._check_cronjob():
pass
self._check_select()
self._check_delete()
self._try_dump_cnt() |
Start scheduler loop | def run(self):
'''Start scheduler loop'''
logger.info("scheduler starting...")
while not self._quit:
try:
time.sleep(self.LOOP_INTERVAL)
self.run_once()
self._exceptions = 0
except KeyboardInterrupt:
break
... |
Start xmlrpc interface | def xmlrpc_run(self, port=23333, bind='127.0.0.1', logRequests=False):
'''Start xmlrpc interface'''
from pyspider.libs.wsgi_xmlrpc import WSGIXMLRPCApplication
application = WSGIXMLRPCApplication()
application.register_function(self.quit, '_quit')
application.register_function(... |
Called when a new request is arrived | def on_new_request(self, task):
'''Called when a new request is arrived'''
task['status'] = self.taskdb.ACTIVE
self.insert_task(task)
self.put_task(task)
project = task['project']
self._cnt['5m'].event((project, 'pending'), +1)
self._cnt['1h'].event((project, 'pe... |
Called when a crawled task is arrived | def on_old_request(self, task, old_task):
'''Called when a crawled task is arrived'''
now = time.time()
_schedule = task.get('schedule', self.default_schedule)
old_schedule = old_task.get('schedule', {})
if _schedule.get('force_update') and self.projects[task['project']].task_q... |
Called when a status pack is arrived | def on_task_status(self, task):
'''Called when a status pack is arrived'''
try:
procesok = task['track']['process']['ok']
if not self.projects[task['project']].task_queue.done(task['taskid']):
logging.error('not processing pack: %(project)s:%(taskid)s %(url)s', ta... |
Called when a task is done and success, called by `on_task_status` | def on_task_done(self, task):
'''Called when a task is done and success, called by `on_task_status`'''
task['status'] = self.taskdb.SUCCESS
task['lastcrawltime'] = time.time()
if 'schedule' in task:
if task['schedule'].get('auto_recrawl') and 'age' in task['schedule']:
... |
Called when a task is failed, called by `on_task_status` | def on_task_failed(self, task):
'''Called when a task is failed, called by `on_task_status`'''
if 'schedule' not in task:
old_task = self.taskdb.get_task(task['project'], task['taskid'], fields=['schedule'])
if old_task is None:
logging.error('unknown status pack... |
Called when a task is selected to fetch & process | def on_select_task(self, task):
'''Called when a task is selected to fetch & process'''
# inject informations about project
logger.info('select %(project)s:%(taskid)s %(url)s', task)
project_info = self.projects.get(task['project'])
assert project_info, 'no such project'
... |
interactive mode of select tasks | def _check_select(self):
"""
interactive mode of select tasks
"""
if not self.interactive:
return super(OneScheduler, self)._check_select()
# waiting for running tasks
if self.running_task > 0:
return
is_crawled = []
def run(proj... |
Ignore not processing error in interactive mode | def on_task_status(self, task):
"""Ignore not processing error in interactive mode"""
if not self.interactive:
super(OneScheduler, self).on_task_status(task)
try:
procesok = task['track']['process']['ok']
except KeyError as e:
logger.error("Bad status... |
Build project script as module | def build_module(project, env=None):
'''Build project script as module'''
from pyspider.libs import base_handler
assert 'name' in project, 'need name of project'
assert 'script' in project, 'need script of project'
if env is None:
env = {}
# fix for old non-p... |
Check if project_name need update | def _need_update(self, project_name, updatetime=None, md5sum=None):
'''Check if project_name need update'''
if project_name not in self.projects:
return True
elif md5sum and md5sum != self.projects[project_name]['info'].get('md5sum'):
return True
elif updatetime a... |
Check projects by last update time | def _check_projects(self):
'''Check projects by last update time'''
for project in self.projectdb.check_update(self.last_check_projects,
['name', 'updatetime']):
if project['name'] not in self.projects:
continue
i... |
Load project into self.projects from project info dict | def _load_project(self, project):
'''Load project into self.projects from project info dict'''
try:
project['md5sum'] = utils.md5string(project['script'])
ret = self.build_module(project, self.env)
self.projects[project['name']] = ret
except Exception as e:
... |
Update one project from database | def _update_project(self, project_name):
'''Update one project from database'''
project = self.projectdb.get(project_name)
if not project:
return None
return self._load_project(project) |
get project data object, return None if not exists | def get(self, project_name, updatetime=None, md5sum=None):
'''get project data object, return None if not exists'''
if time.time() - self.last_check_projects > self.CHECK_PROJECTS_INTERVAL:
self._check_projects()
if self._need_update(project_name, updatetime, md5sum):
sel... |
make cookie python 3 version use this instead of getheaders | def get_all(self, name, default=None):
"""make cookie python 3 version use this instead of getheaders"""
if default is None:
default = []
return self._headers.get_list(name) or default |
return a dict | def status_count(self, project):
'''
return a dict
'''
pipe = self.redis.pipeline(transaction=False)
for status in range(1, 5):
pipe.scard(self._gen_status_key(project, status))
ret = pipe.execute()
result = {}
for status, count in enumerate(r... |
Increment the counter by n (default = 1) | def increment(self, n=1):
""" Increment the counter by n (default = 1) """
with self.count.get_lock():
self.count.value += n |
Explicitly refresh one or more index, making all operations
performed since the last refresh available for search. | def refresh(self):
"""
Explicitly refresh one or more index, making all operations
performed since the last refresh available for search.
"""
self._changed = False
self.es.indices.refresh(index=self.index) |
Send fetch result to processor | def send_result(self, type, task, result):
'''Send fetch result to processor'''
if self.outqueue:
try:
self.outqueue.put((task, result))
except Exception as e:
logger.exception(e) |
Do one fetch | def async_fetch(self, task, callback=None):
'''Do one fetch'''
url = task.get('url', 'data:,')
if callback is None:
callback = self.send_result
type = 'None'
start_time = time.time()
try:
if url.startswith('data:'):
type = 'data'
... |
Synchronization fetch, usually used in xmlrpc thread | def sync_fetch(self, task):
'''Synchronization fetch, usually used in xmlrpc thread'''
if not self._running:
return self.ioloop.run_sync(functools.partial(self.async_fetch, task, lambda t, _, r: True))
wait_result = threading.Condition()
_result = {}
def callback(ty... |
A fake fetcher for dataurl | def data_fetch(self, url, task):
'''A fake fetcher for dataurl'''
self.on_fetch('data', task)
result = {}
result['orig_url'] = url
result['content'] = dataurl.decode(url)
result['headers'] = {}
result['status_code'] = 200
result['url'] = url
result... |
HTTP fetcher | def http_fetch(self, url, task):
'''HTTP fetcher'''
start_time = time.time()
self.on_fetch('http', task)
handle_error = lambda x: self.handle_error('http', url, task, start_time, x)
# setup request parameters
fetch = self.pack_tornado_request_parameters(url, task)
... |
Fetch with phantomjs proxy | def phantomjs_fetch(self, url, task):
'''Fetch with phantomjs proxy'''
start_time = time.time()
self.on_fetch('phantomjs', task)
handle_error = lambda x: self.handle_error('phantomjs', url, task, start_time, x)
# check phantomjs proxy is enabled
if not self.phantomjs_pro... |
Run loop | def run(self):
'''Run loop'''
logger.info("fetcher starting...")
def queue_loop():
if not self.outqueue or not self.inqueue:
return
while not self._quit:
try:
if self.outqueue.full():
break
... |
Quit fetcher | def quit(self):
'''Quit fetcher'''
self._running = False
self._quit = True
self.ioloop.add_callback(self.ioloop.stop)
if hasattr(self, 'xmlrpc_server'):
self.xmlrpc_ioloop.add_callback(self.xmlrpc_server.stop)
self.xmlrpc_ioloop.add_callback(self.xmlrpc_io... |
Run xmlrpc server | def xmlrpc_run(self, port=24444, bind='127.0.0.1', logRequests=False):
'''Run xmlrpc server'''
import umsgpack
from pyspider.libs.wsgi_xmlrpc import WSGIXMLRPCApplication
try:
from xmlrpc.client import Binary
except ImportError:
from xmlrpclib import Binar... |
Called after task fetched | def on_result(self, type, task, result):
'''Called after task fetched'''
status_code = result.get('status_code', 599)
if status_code != 599:
status_code = (int(status_code) / 100 * 100)
self._cnt['5m'].event((task.get('project'), status_code), +1)
self._cnt['1h'].even... |
Dump counters as a dict | def to_dict(self, get_value=None):
"""Dump counters as a dict"""
result = {}
for key, value in iteritems(self):
if isinstance(value, BaseCounter):
if get_value is not None:
value = getattr(value, get_value)
result[key] = value
... |
Set value of a counter by counter key | def value(self, key, value=1):
"""Set value of a counter by counter key"""
if isinstance(key, six.string_types):
key = (key, )
# assert all(isinstance(k, six.string_types) for k in key)
assert isinstance(key, tuple), "event key type error"
if key not in self.counters:... |
Clear not used counters | def trim(self):
"""Clear not used counters"""
for key, value in list(iteritems(self.counters)):
if value.empty():
del self.counters[key] |
Dump counters as a dict | def to_dict(self, get_value=None):
"""Dump counters as a dict"""
self.trim()
result = {}
for key, value in iteritems(self.counters):
if get_value is not None:
value = getattr(value, get_value)
r = result
for _key in key[:-1]:
... |
Dump counters to file | def dump(self, filename):
"""Dump counters to file"""
try:
with open(filename, 'wb') as fp:
cPickle.dump(self.counters, fp)
except Exception as e:
logging.warning("can't dump counter to file %s: %s", filename, e)
return False
return Tru... |
Load counters to file | def load(self, filename):
"""Load counters to file"""
try:
with open(filename, 'rb') as fp:
self.counters = cPickle.load(fp)
except:
logging.debug("can't load counter from file: %s", filename)
return False
return True |
A powerful spider system in python. | def cli(ctx, **kwargs):
"""
A powerful spider system in python.
"""
if kwargs['add_sys_path']:
sys.path.append(os.getcwd())
logging.config.fileConfig(kwargs['logging_config'])
# get db from env
for db in ('taskdb', 'projectdb', 'resultdb'):
if kwargs[db] is not None:
... |
Run Scheduler, only one scheduler is allowed. | def scheduler(ctx, xmlrpc, xmlrpc_host, xmlrpc_port,
inqueue_limit, delete_time, active_tasks, loop_limit, fail_pause_num,
scheduler_cls, threads, get_object=False):
"""
Run Scheduler, only one scheduler is allowed.
"""
g = ctx.obj
Scheduler = load_cls(None, None, schedul... |
Run Fetcher. | def fetcher(ctx, xmlrpc, xmlrpc_host, xmlrpc_port, poolsize, proxy, user_agent,
timeout, phantomjs_endpoint, puppeteer_endpoint, splash_endpoint, fetcher_cls,
async_mode=True, get_object=False, no_input=False):
"""
Run Fetcher.
"""
g = ctx.obj
Fetcher = load_cls(None, None, f... |
Run Processor. | def processor(ctx, processor_cls, process_time_limit, enable_stdout_capture=True, get_object=False):
"""
Run Processor.
"""
g = ctx.obj
Processor = load_cls(None, None, processor_cls)
processor = Processor(projectdb=g.projectdb,
inqueue=g.fetcher2processor, status_queu... |
Run result worker. | def result_worker(ctx, result_cls, get_object=False):
"""
Run result worker.
"""
g = ctx.obj
ResultWorker = load_cls(None, None, result_cls)
result_worker = ResultWorker(resultdb=g.resultdb, inqueue=g.processor2result)
g.instances.append(result_worker)
if g.get('testing_mode') or get_o... |
Run WebUI | def webui(ctx, host, port, cdn, scheduler_rpc, fetcher_rpc, max_rate, max_burst,
username, password, need_auth, webui_instance, process_time_limit, get_object=False):
"""
Run WebUI
"""
app = load_cls(None, None, webui_instance)
g = ctx.obj
app.config['taskdb'] = g.taskdb
app.confi... |
Run phantomjs fetcher if phantomjs is installed. | def phantomjs(ctx, phantomjs_path, port, auto_restart, args):
"""
Run phantomjs fetcher if phantomjs is installed.
"""
args = args or ctx.default_map and ctx.default_map.get('args', [])
import subprocess
g = ctx.obj
_quit = []
phantomjs_fetcher = os.path.join(
os.path.dirname(py... |
Run puppeteer fetcher if puppeteer is installed. | def puppeteer(ctx, port, auto_restart, args):
"""
Run puppeteer fetcher if puppeteer is installed.
"""
import subprocess
g = ctx.obj
_quit = []
puppeteer_fetcher = os.path.join(
os.path.dirname(pyspider.__file__), 'fetcher/puppeteer_fetcher.js')
cmd = ['node', puppeteer_fetcher,... |
Run all the components in subprocess or thread | def all(ctx, fetcher_num, processor_num, result_worker_num, run_in):
"""
Run all the components in subprocess or thread
"""
ctx.obj['debug'] = False
g = ctx.obj
# FIXME: py34 cannot run components with threads
if run_in == 'subprocess' and os.name != 'nt':
run_in = utils.run_in_sub... |
Run Benchmark test.
In bench mode, in-memory sqlite database is used instead of on-disk sqlite database. | def bench(ctx, fetcher_num, processor_num, result_worker_num, run_in, total, show,
taskdb_bench, message_queue_bench, all_bench):
"""
Run Benchmark test.
In bench mode, in-memory sqlite database is used instead of on-disk sqlite database.
"""
from pyspider.libs import bench
from pyspid... |
One mode not only means all-in-one, it runs every thing in one process over
tornado.ioloop, for debug purpose | def one(ctx, interactive, enable_phantomjs, enable_puppeteer, scripts):
"""
One mode not only means all-in-one, it runs every thing in one process over
tornado.ioloop, for debug purpose
"""
ctx.obj['debug'] = False
g = ctx.obj
g['testing_mode'] = True
if scripts:
from pyspider.... |
Send Message to project from command line | def send_message(ctx, scheduler_rpc, project, message):
"""
Send Message to project from command line
"""
if isinstance(scheduler_rpc, six.string_types):
scheduler_rpc = connect_rpc(ctx, None, scheduler_rpc)
if scheduler_rpc is None and os.environ.get('SCHEDULER_NAME'):
scheduler_rpc... |
Pretty-print a Python object to a stream [default is sys.stdout]. | def pprint(object, stream=None, indent=1, width=80, depth=None):
"""Pretty-print a Python object to a stream [default is sys.stdout]."""
printer = PrettyPrinter(
stream=stream, indent=indent, width=width, depth=depth)
printer.pprint(object) |
Format a Python object into a pretty-printed representation. | def pformat(object, indent=1, width=80, depth=None):
"""Format a Python object into a pretty-printed representation."""
return PrettyPrinter(indent=indent, width=width, depth=depth).pformat(object) |
Format object for a specific context, returning a string
and flags indicating whether the representation is 'readable'
and whether the object represents a recursive construct. | def format(self, object, context, maxlevels, level):
"""Format object for a specific context, returning a string
and flags indicating whether the representation is 'readable'
and whether the object represents a recursive construct.
"""
return _safe_repr(object, context, maxlevels... |
Called every result | def on_result(self, task, result):
'''Called every result'''
if not result:
return
if 'taskid' in task and 'project' in task and 'url' in task:
logger.info('result %s:%s %s -> %.30r' % (
task['project'], task['taskid'], task['url'], result))
re... |
Run loop | def run(self):
'''Run loop'''
logger.info("result_worker starting...")
while not self._quit:
try:
task, result = self.inqueue.get(timeout=1)
self.on_result(task, result)
except Queue.Empty as e:
continue
except ... |
Called every result | def on_result(self, task, result):
'''Called every result'''
if not result:
return
if 'taskid' in task and 'project' in task and 'url' in task:
logger.info('result %s:%s %s -> %.30r' % (
task['project'], task['taskid'], task['url'], result))
pr... |
Get the number of tokens in bucket | def get(self):
'''Get the number of tokens in bucket'''
now = time.time()
if self.bucket >= self.burst:
self.last_update = now
return self.bucket
bucket = self.rate * (now - self.last_update)
self.mutex.acquire()
if bucket > 1:
self.buc... |
Migrate tool for pyspider | def migrate(pool, from_connection, to_connection):
"""
Migrate tool for pyspider
"""
f = connect_database(from_connection)
t = connect_database(to_connection)
if isinstance(f, ProjectDB):
for each in f.get_all():
each = unicode_obj(each)
logging.info("projectdb: ... |
Encode data to DataURL | def encode(data, mime_type='', charset='utf-8', base64=True):
"""
Encode data to DataURL
"""
if isinstance(data, six.text_type):
data = data.encode(charset)
else:
charset = None
if base64:
data = utils.text(b64encode(data))
else:
data = utils.text(quote(data))... |
Decode DataURL data | def decode(data_url):
"""
Decode DataURL data
"""
metadata, data = data_url.rsplit(',', 1)
_, metadata = metadata.split('data:', 1)
parts = metadata.split(';')
if parts[-1] == 'base64':
data = b64decode(data)
else:
data = unquote(data)
for part in parts:
if p... |
Build the actual URL to use. | def _build_url(url, _params):
"""Build the actual URL to use."""
# Support for unicode domain names and paths.
scheme, netloc, path, params, query, fragment = urlparse(url)
netloc = netloc.encode('idna').decode('utf-8')
if not path:
path = '/'
if six.PY2:
if isinstance(scheme, ... |
Quote non-ascii characters | def quote_chinese(url, encodeing="utf-8"):
"""Quote non-ascii characters"""
if isinstance(url, six.text_type):
return quote_chinese(url.encode(encodeing))
if six.PY3:
res = [six.int2byte(b).decode('latin-1') if b < 128 else '%%%02X' % b for b in url]
else:
res = [b if ord(b) < 12... |
Downloads resources from s3 by url and unzips them to the provided path | def DownloadResource(url, path):
'''Downloads resources from s3 by url and unzips them to the provided path'''
import requests
from six import BytesIO
import zipfile
print("Downloading... {} to {}".format(url, path))
r = requests.get(url, stream=True)
z = zipfile.ZipFile(BytesIO(r.content))
... |
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