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template.py
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template.py
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# coding=utf-8
import os,json,re
import webapp2
from google.appengine.ext.webapp import template,blobstore_handlers,RequestHandler
from google.appengine.api import app_identity,mail,memcache
from google.appengine.ext import blobstore,ndb
class base(ndb.Model):
# default未使用低容量
# 他から計算できる情報は保存しない。コメントマイリス数
# 時刻
bone=ndb.DateTimeProperty(auto_now_add=True)
last=ndb.DateTimeProperty(auto_now=True)
# 分類
cate=ndb.StringProperty(default=u"what")
# 関係検索用
kusr=ndb.KeyProperty() # 作者
kint=ndb.KeyProperty() # 米等の対象物
kner=ndb.KeyProperty(repeated=True)
kfar=ndb.KeyProperty(repeated=True)
# 文章検索用
name=ndb.StringProperty()
text=ndb.TextProperty()
mail=ndb.StringProperty()
word=ndb.StringProperty()
tags=ndb.StringProperty(repeated=True)
# 整列用
len0=ndb.IntegerProperty()
len1=ndb.IntegerProperty()
len2=ndb.IntegerProperty()
lenA=ndb.IntegerProperty()
lenB=ndb.IntegerProperty()
lenC=ndb.IntegerProperty()
# ファイル
blob=ndb.BlobKeyProperty(repeated=True)
# JSON
data=ndb.JsonProperty()
temp=ndb.JsonProperty()
@classmethod
def get(cls, **kwargs):
if "urlsafe" in kwargs:
return ndb.Key(urlsafe=kwargs["urlsafe"]).get()
if "id" in kwargs:
return cls.get_by_id(kwargs["id"])
@classmethod
def delete_multi(cls,keys):
ndb.delete_multi(keys)
@classmethod
def get_multi(cls,keys):
ndb.get_multi(keys)
@classmethod
def put_multi(cls,keys):
ndb.put_multi(keys)
@classmethod
def _pre_delete_hook(c,k):
s=k.get()
blobstore.delete(s.blob)
ndb.delete_multi(c.query(ndb.OR(c.kusr==s.key,c.kint==s.key)).fetch(keys_only=True))
# https://cloud.google.com/appengine/docs/standard/python/blobstore/
class blobhandler(RequestHandler):
def get(s,blob):
s.response.headers.add_header('X-AppEngine-BlobKey',blob)
if "Range" in s.request.headers:
r=re.findall(r"\d+",s.request.headers['Range'])
r0=int(r[0])
r1=int(r[1]) if len(r)>=2 else r0+1048576
s.response.headers.add_header('X-AppEngine-BlobRange',"bytes={0}-{1}".format(r0,r1))
class datainput:
def __init__(s,handler):
s.h=handler
def __getattr__(s,k):
r=vars(s)["h"].request
if k=="hosturl":
return r.host_url
if k=="path":
return r.path
return r.get(k)
def getbody(s):
return s.h.request.body
def getjson(s):
return json.loads(s.h.request.body)
def getfile(s):
return [i.key() for i in s.h.get_uploads()]
class workhandler(blobstore_handlers.BlobstoreUploadHandler,RequestHandler):
@classmethod
def getapp(cls):
return webapp2.WSGIApplication([('/.*',cls)])
def getcookie(s,k):
return s.request.cookies.get(k,'')
def setcookie(s,k,v,d=100):
s.response.headers.add_header('Set-Cookie','{0}={1}; path=/; max-age={2}'.format(k,v,86400*d if v else -100))
def work(s,a,o):
pass # doing
def post(s):
s.get()
def get(s):
# メモリリーク対策
context=ndb.get_context()
context.clear_cache()
context.set_cache_policy(lambda key:False)
context.set_memcache_policy(lambda key:False)
# 入力
s.i=datainput(s)
if any(not i.size for i in s.get_uploads()):
blobstore.delete(i.key() for i in s.get_uploads())
# 処理
s.work(s.i)
def write_json(self,data):
def jsondefault(o):
if isinstance(o,ndb.Model):
r=o.to_dict()
r["key"]=o.key
return r
if isinstance(o,ndb.Key):
return {"id":o.id(),"kind":o.kind(),"urlsafe":o.urlsafe()}
if isinstance(o,blobstore.BlobKey):
return str(o)
return None
self.response.out.write(json.dumps(data,default=jsondefault,indent=4))
def write_temp(self,temp,data):
tmp=os.path.join(os.path.dirname(__file__),temp)
if os.path.exists(tmp):
if isinstance(data,ndb.Model):
data=data.to_dict()
self.response.out.write(template.render(tmp,data))
def write(self,text):
self.response.out.write(text)
def sendmail(data):
data["sender"]=u"anything@{0}.appspotmail.com".format(app_identity.get_application_id())
mail.send_mail(sender=data["sender"],to=data["to"],subject=data["subject"],body=data["body"])
def getuploadurl(nexturl, maxbytes=None):
return blobstore.create_upload_url(nexturl, max_bytes_per_blob=maxbytes)