class DeleteHandlerV1(tornado.web.RequestHandler):
def initialize(self):
self.mysql_client = MySQLUtils()
self.fdfs_client = FDFSUtils()
self.res_status = dict()
@tornado.gen.coroutine
@tornado.web.asynchronous
def get(self, domain, file_name):
try:
if file_name:
exist_status, exist_info = self.mysql_client.fdfs_exist(file_name, domain)
if exist_status == 0: # exist
delete_status, delete_result = self.fdfs_client.delete_file(exist_info.get('file_group', ''),
exist_info.get('file_local_path', ''))
if delete_status:
mysql_status, mysql_info = self.mysql_client.fdfs_delete(file_name, domain)
if mysql_status == 0:
logging.info("file: %s ,domain: %s ,delete mysql success" % (file_name, domain))
self.res_status['status'], self.res_status['result'] = 0, None
else:
raise MysqlExcept(mysql_info)
else:
raise FdfsExcept(delete_result)
elif exist_status == 1:
raise MysqlExcept('mysql query no data')
else:
raise MysqlExcept(exist_info)
else:
raise HandlerExcept("no file name")
except MysqlExcept as error:
logging.error("file: %s,domain: %s,error: %s" % (file_name, domain, error.msg))
self.res_status['status'], self.res_status['result'] = 1, error.msg
except FdfsExcept as error:
logging.error("file: %s,domain: %s,error: %s" % (file_name, domain, error.msg))
self.res_status['status'], self.res_status['result'] = 2, error.msg
except Exception as error:
logging.error(str(error))
self.res_status['status'], self.res_status['result'] = 3, str(error)
finally:
self.mysql_client.close_connetc()
self.write(json.dumps(self.res_status))
self.finish()
class UploadHandlerV1(tornado.web.RequestHandler):
"""
Tornado文件上传类,使用了 stream_request_body 支持大文件上传
"""
def initialize(self):
"""
第一步执行,初始化操作
:return:
"""
self.set_header('Content-type', 'application/json')
self.upload_dir = FDFS_CONFIG.get('tmp_path')
if not os.path.exists(self.upload_dir):
os.mkdir(self.upload_dir)
self.fdfs_client = FDFSUtils()
self.mysql_client = MySQLUtils()
self.file_tmp_path = None
self.res_status = dict()
self.file_info = dict()
@tornado.gen.coroutine
def prepare(self):
"""
第二步执行,读取请求头
:return:
"""
try:
total = int(self.request.headers.get("Content-Length", "0"))
except:
total = 0
self.ps = PostDataStreamer(total, self.upload_dir)
@tornado.gen.coroutine
def data_received(self, chunk):
"""
第三步执行,写文件
:param chunk: 文件内容
:return:
"""
self.ps.receive(chunk)
def fdfs_index(self, file_name, domain_name, replace=False):
"""
上传文件到fdfs,插入索引信息到mysql
:return:
返回 0 , 正常上传并写入索引信息
返回 1 , mysql相关错误
返回 2 , fdfs相关错误
返回 3 , 其他错误
"""
try:
exist_status, exist_info = self.mysql_client.raw_sql_fdfs_exist(file_name, domain_name)
if exist_status == 0: # 已经存在,决定是否覆盖
if replace: # 覆盖
fdfs_up_status, fdfs_up_info = self.fdfs_client.upload_file(self.file_tmp_path)
if fdfs_up_status:
file_group, file_local_path = fdfs_up_info.split('/', 1)
self.file_info['file_group'] = file_group
self.file_info['file_local_path'] = file_local_path
mysql_up_status, mysql_up_info = self.mysql_client.fdfs_update(self.file_info, file_name,
domain_name)
if mysql_up_status == 0:
if exist_info.get('file_group', '') == '' or exist_info.get('file_local_path', '') == '':
pass
else:
delete_status, delete_result = self.fdfs_client.delete_file(
exist_info.get('file_group', ''), exist_info.get('file_local_path', ''))
if delete_status:
pass
else:
raise FdfsExcept("{res}:{group}/{path}".format(res=delete_result,
group=self.file_info['file_group'],
path=self.file_info['file_local_path']))
else:
raise MysqlExcept(mysql_up_info)
else: # 上传失败
raise FdfsExcept(fdfs_up_info)
else:
pass
elif exist_status == 1: # 不存在，上传新文件
# insert 半条数据
self.file_info['file_group'] = ''
self.file_info['file_local_path'] = ''
mysql_insert_status, mysql_insert_info = self.mysql_client.fdfs_insert(self.file_info)
if mysql_insert_status:
fdfs_up_status, fdfs_up_info = self.fdfs_client.upload_file(self.file_tmp_path)
if fdfs_up_status:
file_group, file_local_path = fdfs_up_info.split('/', 1)
self.file_info['file_group'] = file_group
self.file_info['file_local_path'] = file_local_path
# mysql_status, mysql_info = self.mysql_client.fdfs_insert(self.file_info)
mysql_up_status, mysql_up_info = self.mysql_client.fdfs_update_id(self.file_info, file_name,
self.file_info['domain_id'])
if mysql_up_status:
pass
else:
raise MysqlExcept("update-%s" % mysql_up_info)
else:
raise FdfsExcept(str(fdfs_up_info))
else:
raise MysqlExcept("insert-%s" % mysql_insert_info)
else:
raise MysqlExcept("exist-%s" % exist_info)
"""
elif exist_status == 1: # 不存在，上传新文件
fdfs_up_status, fdfs_up_info = self.fdfs_client.upload_file(self.file_tmp_path)
if fdfs_up_status:
file_group, file_local_path = fdfs_up_info.split('/', 1)
self.file_info['file_group'] = file_group
self.file_info['file_local_path'] = file_local_path
mysql_insert_status, mysql_insert_info = self.mysql_client.fdfs_insert(self.file_info)
if mysql_status:
pass
else:
raise MysqlExcept("insert-%s" % mysql_insert_info)
else:
raise FdfsExcept(str(fdfs_up_info))
else:
raise MysqlExcept("exist-%s" % exist_info)
"""
except MysqlExcept as error:
return 1, str(error.msg)
except FdfsExcept as error:
return 2, str(error.msg)
except Exception as error:
return 3, str(error)
return 0, None
@tornado.gen.coroutine
@tornado.web.asynchronous
def post(self, *args, **kwargs):
"""
第四步执行,获取文件信息,上传写数据库,销毁文件
:param args:
:param kwargs:
:return:
"""
domain = self.get_argument('domain', default='test', strip=True)
file_name = self.get_argument('filename', default=None, strip=True)
hash_flag = self.get_argument('hash', default='false', strip=True)
replace = self.get_argument('replace', default='false', strip=True)
replace_flag = False
# redis = self.get_argument('redis', default='false', strip=True)
try:
self.ps.finish_receive()
# 获取文件信息
for idx, part in enumerate(self.ps.parts):
self.file_info['file_size'] = part.get('size', 0)
self.file_tmp_path = part.get("tmpfile").name
if hash_flag == 'true':
md5, crc32 = HashUtils(self.file_tmp_path).file_hash()
self.file_info['file_md5'] = md5
self.file_info['file_crc32'] = crc32
else:
self.file_info['file_md5'] = ""
self.file_info['file_crc32'] = ""
for header in part["headers"]:
params = header.get("params", None)
if params:
if file_name:
self.file_info['file_name'] = file_name
else:
self.file_info['file_name'] = params.get("filename", "")
domain_exist_stat, domain_exist_info = self.mysql_client.domain_id_exist(domain)
if domain_exist_stat == 0:
domain_id = domain_exist_info.get('id')
self.file_info['domain_id'] = domain_id
# 上传文件,写入索引
if replace == 'true':
replace_flag = True
fdfs_index_status, fdfs_index_info = self.fdfs_index(self.file_info['file_name'], domain,
replace=replace_flag)
if fdfs_index_status == 0:
logging.info("file: %s, domain: %s ,fdfs upload, index insert success" %
(self.file_info['file_name'], domain))
self.res_status['status'], self.res_status['result'] = 0, self.file_info['file_name']
else:
logging.error("file: %s, domain: %s , error: %s-%s" % (self.file_info['file_name'],
domain, str(fdfs_index_status),
fdfs_index_info))
self.res_status['status'], self.res_status['result'] = fdfs_index_status, fdfs_index_info
elif domain_exist_stat == 1:
self.res_status['status'], self.res_status['result'] = 6, "Domain not exist"
else:
logging.error("file: %s, domain: %s , error: %s" % (self.file_info['file_name'],
domain, domain_exist_info))
self.res_status['status'], self.res_status['result'] = 5, domain_exist_info
except Exception as error:
logging.error(str(error))
self.res_status['status'], self.res_status['result'] = 4, str(error)
finally:
self.mysql_client.close_connetc()
self.file_info.clear()
self.ps.release_parts() # 删除处理
self.write(json.dumps(self.res_status))
self.finish()