ahserver_g/ahserver/processorResource.py

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import os
import re
from aiohttp.web_urldispatcher import StaticResource, _WebHandler, PathLike
from aiohttp.web_urldispatcher import Optional, _ExpectHandler
from aiohttp.web_urldispatcher import Path
from aiohttp.web_response import Response, StreamResponse
from aiohttp.web_exceptions import (
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HTTPException,
HTTPExpectationFailed,
HTTPForbidden,
HTTPMethodNotAllowed,
HTTPNotFound,
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)
from aiohttp.web_fileresponse import FileResponse
from aiohttp.web_request import Request
from aiohttp.web_response import Response, StreamResponse
from aiohttp.web_routedef import AbstractRouteDef
from appPublic.jsonConfig import getConfig
from appPublic.MiniI18N import getI18N
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from appPublic.dictObject import DictObject, multiDict2Dict
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from .baseProcessor import getProcessor
from .xlsxdsProcessor import XLSXDataSourceProcessor
from .sqldsProcessor import SQLDataSourceProcessor
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from .functionProcessor import FunctionProcessor
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from .serverenv import ServerEnv
from .url2file import Url2File
from .filestorage import FileStorage
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from .restful import DBCrud
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from .dbadmin import DBAdmin
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from .filedownload import file_download, path_decode
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def getHeaderLang(request):
al = request.headers.get('Accept-Language')
if al is None:
return 'en'
return al.split(',')[0]
def i18nDICT(request):
c = getConfig()
i18n = getI18N()
lang = getHeaderLang(request)
l = c.langMapping.get(lang,lang)
return json.dumps(i18n.getLangDict(l)).encode(c.website.coding)
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class ProcessorResource(StaticResource,Url2File):
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def __init__(self, prefix: str, directory: PathLike,
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*, name: Optional[str]=None,
expect_handler: Optional[_ExpectHandler]=None,
chunk_size: int=256 * 1024,
show_index: bool=False, follow_symlinks: bool=False,
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append_version: bool=False,
indexes:list=[],
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processors:dict={}) -> None:
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StaticResource.__init__(self,prefix, directory,
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name=name,
expect_handler=expect_handler,
chunk_size=chunk_size,
show_index=show_index,
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follow_symlinks=follow_symlinks,
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append_version=append_version)
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Url2File.__init__(self,directory,prefix,indexes,inherit=True)
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gr = self._routes.get('GET')
self._routes.update({'POST':gr})
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self._routes.update({'PUT':gr})
self._routes.update({'OPTIONS':gr})
self._routes.update({'DELETE':gr})
self._routes.update({'TRACE':gr})
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self.y_processors = processors
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self.y_prefix = prefix
self.y_directory = directory
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self.y_indexes = indexes
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self.y_env = DictObject()
def setProcessors(self, processors):
self.y_processors = processors
def setIndexes(self, indexes):
self.y_indexes = indexes
def abspath(self,path:str):
path = path[len(self.y_prefix):]
if len(path)>0 and path[0] == '/':
path = path[1:]
rp = os.path.join(self.y_directory , path)
real_path = os.path.abspath(rp)
return real_path
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async def getPostData(self,request: Request) -> dict:
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reader = await request.multipart()
if reader is None:
md = await request.post()
ns = multiDict2Dict(md)
return ns
ns = {}
while 1:
field = await reader.next()
if not field:
break
value = ''
if hasattr(field,'filename'):
saver = FileStorage()
value = await saver.save(field.filename,field.read_chunk)
else:
value = await field.read(decode=True)
ov = ns.get(field.name)
if ov:
if type(ov) == type([]):
ov.append(value)
else:
ov = [ov,value]
else:
ov = value
ns.update({field.name:ov})
return ns
async def _handle(self,request:Request) -> StreamResponse:
clientkeys = {
"iPhone":"iphone",
"iPad":"ipad",
"Android":"androidpad",
"Windows Phone":"winphone",
"Windows NT[.]*Win64; x64":"pc",
}
def i18nDICT():
c = getConfig()
g = ServerEnv()
if not g.get('myi18n',False):
g.myi18n = getI18N()
lang = getHeaderLang(request)
l = c.langMapping.get(lang,lang)
return json.dumps(g.myi18n.getLangDict(l))
def getClientType(request):
agent = request.headers.get('user-agent')
if type(agent)!=type('') and type(agent)!=type(b''):
return 'pc'
for k in clientkeys.keys():
m = re.findall(k,agent)
if len(m)>0:
return clientkeys[k]
return 'pc'
def serveri18n(s):
lang = getHeaderLang(request)
c = getConfig()
g = ServerEnv()
if not g.get('myi18n',False):
g.myi18n = getI18N()
l = c.langMapping.get(lang,lang)
return g.myi18n(s,l)
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def gethost():
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return '/'.join(str(request.url).split('/')[:3])
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async def getArgs():
ns = DictObject()
if request.method == 'POST':
return await self.getPostData(request)
ns = multiDict2Dict(request.query)
return ns
self.y_env.i18n = serveri18n
self.y_env.i18nDict = i18nDICT
self.y_env.terminalType = getClientType(request)
self.y_env.absurl = self.absUrl
self.y_env.abspath = self.abspath
self.y_env.request2ns = getArgs
self.y_env.resource = self
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self.y_env.gethost = gethost
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path = request.path
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config = getConfig()
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if config.website.dbadm and path.startswith(config.website.dbadm):
pp = path.split('/')[2:]
if len(pp)<3:
raise HTTPNotFound
dbname = pp[0]
tablename = pp[1]
action = pp[2]
adm = DBAdmin(request,dbname,tablename,action)
return await adm.render()
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if config.website.dbrest and path.startswith(config.website.dbrest):
pp = path.split('/')[2:]
if len(pp)<2:
raise HTTPNotFound
dbname = pp[0]
tablename = pp[1]
id = None
if len(pp) > 2:
id = pp[2]
crud = DBCrud(request,dbname,tablename,id=id)
return await crud.dispatch()
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if config.website.download and path.startswith(config.website.download):
pp = path.split('/')[2:]
if len(pp)<1:
raise HTTPNotFound
dp = '/'.join(pp)
path = path_decode(dp)
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return await file_download(request, path)
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if config.website.startswiths:
for a in config.website.startswiths:
if path.startswith(a.leading):
processor = FunctionProcessor(self.abspath(path),self,a)
return await processor.handle(request)
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for word, handlername in self.y_processors:
if path.endswith(word):
Klass = getProcessor(handlername)
processor = Klass(self.abspath(path),self)
return await processor.handle(request)
print(f'path={path} handler by StaticResource..')
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if self.isFolder(path):
config = getConfig()
if not config.website.allowListFolder:
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raise HTTPNotFound
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return await super()._handle(request)
def absUrl(self,request,url):
http='http://'
https='https://'
if url[:7] == http:
return url
if url[:8] == https:
return url
path = request.path
return self.relatedurl(path,url)