def fetch_using_store():
"""
使用已有的代理ip来爬
"""
proxies = query_proxies()
bad_proxies = set()
def job(url, proxy):
res = safe_http(url,
proxies={
'https': 'https://{}'.format(proxy),
'http': 'http://{}'.format(proxy)
},
want_obj=True,
timeout=15)
if res is not None:
check_redirect(res)
store_movie(url, res.text, res.status_code)
else:
bad_proxies.add(proxy)
missing = query_missing()
pool = Pool(100)
while len(missing) > 0:
for proxy in proxies:
if len(missing) == 0:
break
index = random.randint(0, len(missing) - 1)
int_mid = missing[index]
missing.pop(index) # 从待爬取列表移除
url = '{:s}/movie/{:s}'.format(home_url, int2mid(int_mid))
pool.spawn(job, url, proxy)
pool.join()
# 清除不可用的proxy
proxies -= bad_proxies
log('[Proxy] Clear {:d} bad proxies. Available {:d}'.format(
len(bad_proxies), len(proxies)))
bad_proxies.clear()
if len(proxies) < 80:
proxies = query_proxies() # 重查
# 待爬列表空了之后，再查一遍没有存到数据库中的影片
# 因为之前会遇到403或timeout等错误
if len(missing) == 0:
missing = query_missing()
def query_missing():
"""
get还没有爬的movie列表
:return: mid的10进制形式
"""
cursor = collection.find(filter=None, projection={'mid': True, '_id': False})
movies = [mid2int(document['mid']) for document in cursor]
cursor.close()
available = set(range(1, mid2int(max_mid) + 1))
instore = set(movies)
missing = list(available - instore)
log('[Missing] {:d} items'.format(len(missing)))
return missing
def store_movie(url, source, code=None):
"""
将电影信息存入mongodb
:param url: 电影url
:param source: 对应的源码
:param code: http状态码
"""
document = get_movie(url, source, code)
if document is not None:
try:
result = collection.insert_one(document)
log('[Mongodb] store document {:s}'.format(str(result.inserted_id)))
except pymongo.errors.DuplicateKeyError:
log('[Mongodb] Already exists')
def store_movie(url, source, code=None):
"""
将电影信息存入mongodb
:param url: 电影url
:param source: 对应的源码
:param code: http状态码
"""
document = get_movie(url, source, code)
if document is not None:
try:
result = collection.insert_one(document)
log('[Mongodb] store document {:s}'.format(str(
result.inserted_id)))
except pymongo.errors.DuplicateKeyError:
log('[Mongodb] Already exists')
def fetch_using_store():
"""
使用已有的代理ip来爬
"""
proxies = query_proxies()
bad_proxies = set()
def job(url, proxy):
res = safe_http(url,
proxies={
'https': 'https://{}'.format(proxy),
'http': 'http://{}'.format(proxy)
}, want_obj=True, timeout=15)
if res is not None:
check_redirect(res)
store_movie(url, res.text, res.status_code)
else:
bad_proxies.add(proxy)
missing = query_missing()
pool = Pool(100)
while len(missing) > 0:
for proxy in proxies:
if len(missing) == 0:
break
index = random.randint(0, len(missing) - 1)
int_mid = missing[index]
missing.pop(index) # 从待爬取列表移除
url = '{:s}/movie/{:s}'.format(home_url, int2mid(int_mid))
pool.spawn(job, url, proxy)
pool.join()
# 清除不可用的proxy
proxies -= bad_proxies
log('[Proxy] Clear {:d} bad proxies. Available {:d}'.format(len(bad_proxies), len(proxies)))
bad_proxies.clear()
if len(proxies) < 80:
proxies = query_proxies() # 重查
# 待爬列表空了之后，再查一遍没有存到数据库中的影片
# 因为之前会遇到403或timeout等错误
if len(missing) == 0:
missing = query_missing()
def query_missing():
"""
get还没有爬的movie列表
:return: mid的10进制形式
"""
cursor = collection.find(filter=None,
projection={
'mid': True,
'_id': False
})
movies = [mid2int(document['mid']) for document in cursor]
cursor.close()
available = set(range(1, mid2int(max_mid) + 1))
instore = set(movies)
missing = list(available - instore)
log('[Missing] {:d} items'.format(len(missing)))
return missing
help='Home URL of the site. Like "https://avmo.pw')
parser.add_argument('--col',
dest='collection',
action='store',
required=True,
choices=["avmoo", "avsox", "avmemo"],
help='Mongodb collection name.')
args = parser.parse_args()
if args.logging:
enable_logger()
max_mid = args.mid if args.mid else get_latest()
home_url = args.site + '/cn'
if args.collection == 'avmoo':
collection = db.avmoo
elif args.collection == 'avmemo':
collection = db.avmemo
else:
collection = db.avsox
if args.test:
fetch_when_test()
else:
fetch_using_store()
log('job done')
help='The max mid among the movies on the site. Like "5f20"')
parser.add_argument('--site', dest='site', action='store', required=True, type=str,
help='Home URL of the site. Like "https://avmo.pw')
parser.add_argument('--col', dest='collection', action='store', required=True,
choices=["avmoo", "avsox", "avmemo"],
help='Mongodb collection name.')
args = parser.parse_args()
if args.logging:
enable_logger()
max_mid = args.mid if args.mid else get_latest()
home_url = args.site + '/cn'
if args.collection == 'avmoo':
collection = db.avmoo
elif args.collection == 'avmemo':
collection = db.avmemo
else:
collection = db.avsox
if args.test:
fetch_when_test()
else:
fetch_using_store()
log('job done')