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handlers.py
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handlers.py
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# -*- coding: utf-8 -*-
import os
import cgi
import sys
import urllib
# from PIL import Image
from itertools import chain
from google.appengine.ext import ndb
from google.appengine.ext import blobstore
from google.appengine.api import images
from google.appengine.api import app_identity
from google.appengine.ext.webapp import blobstore_handlers
from models import PostUser, ImageBlob, ExplainArticle
import webapp2
from auth import BaseHandler
from webapp2_extras import auth
from webapp2_extras import sessions
from webapp2_extras.auth import InvalidAuthIdError
from webapp2_extras.auth import InvalidPasswordError
import webapp2_extras.appengine.auth.models as auth_models
from webapp2_extras import jinja2
from wtforms import Form, StringField, PasswordField, validators
import cloudstorage as gcs
# GCSタイムアウト設定
retry_params = gcs.RetryParams(
initial_delay=0.2,
max_delay=5.0,
backoff_factor=2,
max_retry_period=15)
gcs.set_default_retry_params(retry_params)
def jinja2_factory(app):
"True ninja method for attaching additional globals/filters to jinja"
config = {'template_path': app.config.get('templates_path', 'template'),}
j = jinja2.Jinja2(app, config=config)
j.environment.globals.update({
# 'config': app.config,
'uri_for': webapp2.uri_for,
})
return j
def get_bucket_name():
return os.environ.get(
'BUCKET_NAME',
app_identity.get_default_gcs_bucket_name())
def get_BlobInfo(blobkey):
"""
This image_key and bskey works with blobstore APIs
that do not expect a corresponding BlobInfo in datastore.
"""
key = str(urllib.unquote(blobkey))
blob_instance = blobstore.BlobInfo.get(key)
return blob_instance
def user_required(handler):
"""
Decorator for checking if there's a user associated with the current session.
Will also fail if there's no session present.
"""
# def check_login(self, *args, **kwargs):
def check_login(self, *args):
auth = self.auth
if not auth.get_user_by_session():
# If handler has no login_url specified invoke a 403 error
try:
self.redirect(self.auth_config['login_url'], abort=True)
except (AttributeError, KeyError) as e:
self.abort(403)
else:
user_session = self.auth.get_user_by_session()
user_instance = PostUser.get_by_id(user_session['user_id'])
# return handler(self, *args, **kwargs)
return handler(self, user_instance)
return check_login
class SecureRequestHandler(BaseHandler):
"""
Only accessible to users that are logged in
"""
@user_required
def get(self, principal_info):
bucket_name = get_bucket_name()
# self.response.out.write(bucket_name)
# create_upload_url にてGCSのバケット名を「gs_bucket_name」に指定する
upload_url = blobstore.create_upload_url('/uploaded', gs_bucket_name = bucket_name + '/members-image-bucket/' + principal_info.nickname + '/')
context = {
'you': principal_info.nickname,
'up_url': upload_url,
}
self.render_response('secure.html', **context)
class ImageUploadHandler(blobstore_handlers.BlobstoreUploadHandler, BaseHandler):
@user_required
def post(self, parent_info):
# inputのname="file"と対応している
file_blob = self.get_uploads('file')[0]
serve_url = images.get_serving_url(file_blob.key())
image_obj = ImageBlob(parent=parent_info.key)
image_obj.populate(
file_name=file_blob.filename,
content_type=file_blob.content_type,
file_size=file_blob.size,
image_url=serve_url,
proprietor=parent_info.nickname
)
image_obj.put()
return self.redirect('/view_image/%s' % file_blob.key())
class InputArticlesHandler(BaseHandler):
def get(self, image_key):
bi_obj = get_BlobInfo(image_key)
image_url = images.get_serving_url(bi_obj.key())
# route /view-image*
context = {
'image_url': image_url,
'item_name': bi_obj.filename # To name="item"
}
self.render_response('view-image.html', **context)
@user_required
def post(self, parent_info):
"""
# incomplete key!
assignment_item = self.request.get('item')
ib_name_key = ndb.Key('PostUser', parent_info.email, 'ImageBlob', assignment_item)
parent('PostUser')'s key which is express id()
"""
assignment_item = self.request.get('item')
ib_query_keys = ImageBlob.query(ImageBlob.file_name == assignment_item).fetch(keys_only=True)
# ib_name_key = ib_name_kei.urlsafe()
# img_query_keys = ndb.Key(urlsafe=ib_name_key)
# target_article = ExplainArticle.query(ExplainArticle.blob_key == self.key, ancestor=self.key).fetch()
form_articles = []
zodiac_signs = ["rat", "ox", "tiger", "hare", "dragon", "serpent", "horse", "sheep", "monky", "rooster", "dog", "boar"]
for twelve in zodiac_signs:
form_articles.append(self.request.get(twelve))
self.session['articles'] = form_articles
self.session['img_key'] = ib_query_keys[0]
return self.redirect('/confirm')
class PersistArticlesHandler(BaseHandler):
def get(self):
confirm_articles = ",".join(self.session.get('articles'))
self.render_response('confirm.html', confirm=confirm_articles)
def post(self):
confirm_articles = self.session.get('articles')
img_key = self.session.get('img_key')
article_obj = ExplainArticle(parent=img_key)
article_obj.populate(
articles=confirm_articles,
blob_key=img_key
)
# return self.response.out.write("Object:%s" % article_obj)
article_obj.put()
return self.redirect('/secure')
def require_child_keys(parent_key):
child_keylist = ImageBlob.query_content(parent_key).fetch(keys_only=True)
return child_keylist
def multi_image(img_query_keys, direction, resize="150"):
list_context = []
# for img_query_key in img_query_keys:
image_objs = ndb.get_multi(img_query_keys)
for image_obj in image_objs:
to_edit_url = "http://" + os.environ['HTTP_HOST'] + "/" + direction + "?ib_name=" + image_obj.file_name
image_url = image_obj.image_url #+ '=s' + resize
context = {
'indicate_url': to_edit_url, # link url(a href)
'image_url': image_url
}
list_context.append(context)
# self.render_response('inner.html', **context)
return list_context
class RetrieveImageListHandler(BaseHandler):
@user_required
def get(self, parent_info):
string = "edit"
image_keylist = require_child_keys(parent_info.key)
list_image_urls = multi_image(image_keylist, string)
# for list_photo_url in list_photo_urls:
self.render_response('inner.html', list_img_urls=list_image_urls)
def require_selected_key(method):
def _require_selected_key(handler):
def wrapper(self, parent_info):
if os.environ['REQUEST_METHOD'] != method:
return self.response.out.write('不正なアクセスです。')
sys.exit()
form = cgi.FieldStorage()
if not form.has_key('ib_name'):
return self.response.out.write('ありません。')
sys.exit()
else:
search_name = form['ib_name'].value
img_query_keys = ImageBlob.query(ImageBlob.file_name == search_name, ancestor=parent_info.key).fetch(keys_only=True)
return handler(self, img_query_keys[0])
return wrapper
return _require_selected_key
class EditPageHandler(BaseHandler):
@user_required
@require_selected_key('GET')
def get(self, ib_get_key):
target_blobimage = ib_get_key.get()
insert_image = target_blobimage.image_url
target_article = target_blobimage.getting()
list_article = target_article.articles
article_str = ",".join(list_article)
unitary_article = {
'image_src': insert_image,
'article': article_str
}
# article_str = article_str.encode('utf_8')
# return self.response.out.write(target_article)
self.render_response('edit.html', **unitary_article)
@user_required
@require_selected_key('POST')
def post(self, ib_get_key):
# target_article = ExplainArticle.query(ExplainArticle.blob_key == ib_get_key, ancestor=ib_get_key).fetch()
target_blobimage = ib_get_key.get()
target_article = target_blobimage.getting()
form_articles = []
zodiac_signs = ["rat", "ox", "tiger", "hare", "dragon", "serpent", "horse", "sheep", "monky", "rooster", "dog", "boar"]
for twelve in zodiac_signs:
form_articles.append(self.request.get(twelve))
target_article.articles = form_articles
target_article.put()
return self.redirect('/secure')
class DeleteItemHandler(BaseHandler):
@user_required
@require_selected_key('POST')
def post(self, ib_get_key):
# target_article_keys = ExplainArticle.query(ExplainArticle.blob_key == ib_get_key, ancestor=ib_get_key).fetch(keys_only=True)
target_article_keys = require_child_keys(ib_get_key)
ib_get_key.delete()
target_article_keys[0].delete()
return self.redirect('/secure')
class MatesContentsHandler(BaseHandler):
@user_required
def get(self, principal_info):
mate_imageblob_keylist = []
string = "focus"
for mate in principal_info.mates:
mate_imageblob_keylist.append(require_child_keys(mate))
# self.response.out.write(mate_imageblob_keylist)
"""
多重リストを平坦化
"""
mate_keylist_flat = list(chain.from_iterable(mate_imageblob_keylist))
mate_multi_image = multi_image(mate_keylist_flat, string, "200")
self.render_response('mate.html', multi_image=mate_multi_image)
class MateArticleHandler(BaseHandler):
def get(self, ib_name):
form = cgi.FieldStorage()
if not form.has_key('ib_name'):
return self.response.out.write('ありません。')
sys.exit()
else:
search_name = form['ib_name'].value
mate_imageblob = ImageBlob.query(ImageBlob.file_name == search_name).fetch()
mate_target_article = mate_imageblob[0].getting()
article_str = ",".join(mate_target_article.articles)
# return self.response.out.write(article_str)
mate_uni_content = {
'mate_image': mate_imageblob[0].image_url,
'image_proprietor': mate_imageblob[0].proprietor,
'article': article_str
}
self.render_response('focus.html', **mate_uni_content)