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Cloud_2.py
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# -*- coding: utf-8 -*-
'''
Created on 2019年11月5日 下午4:20:31
Zhukun Luo
Jiangxi University of Finance and Economics
'''
from flask import Flask , render_template, request, session
import datetime
import os
import boto3
from botocore.client import Config
import json
from boto3.dynamodb.conditions import Key, Attr
from botocore.exceptions import ClientError
import hashlib
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
# put in your AWS details below
host="0.0.0.0"
port=8888
dbname="hire2020-hire-luozhukun1031"
dynamodb = boto3.resource('dynamodb',region_name='cn-north-1',aws_access_key_id='*******', aws_secret_access_key='*****')
table = dynamodb.Table('hire2020-hire-luozhukun1031')
app = Flask(__name__)
# Put in the keys of your AWS connection
app.secret_key = os.urandom(24)
ACCESS_KEY_ID = '************'
ACCESS_SECRET_KEY = '************'
BUCKET_NAME = 'hire2020'
##########################
s3Client = boto3.client('s3',aws_access_key_id=ACCESS_KEY_ID,
aws_secret_access_key=ACCESS_SECRET_KEY,
config=Config(signature_version='s3v4',region_name='cn-north-1'))
#########################
s3 = boto3.resource(
's3',
aws_access_key_id=ACCESS_KEY_ID,
aws_secret_access_key=ACCESS_SECRET_KEY,
config=Config(signature_version='s3v4',region_name='cn-north-1')
)
url = "http://s3.cn-north-1.amazonaws.com.cn/"
def uni_id():#s生成全局唯一ID
nowTime=datetime.datetime.now().strftime("%Y%m%d%H%M%S");#生成当前时间
randomNum=random.randint(0,100);#生成的随机整数n，其中0<=n<=100
if randomNum<=10:
randomNum=str(0)+str(randomNum)
uniqueNum=str(nowTime)+str(randomNum)
return uniqueNum
@app.route('/')
def hello_world():
return render_template("login.html")
@app.route('/login', methods=['GET','POST'])
def login():
if request.method == 'POST':
session['username'] = request.form['username']
# print(session.values())
uname = session['username']
return render_template("index.html")
# https://docs.aws.amazon.com/zh_cn/amazondynamodb/latest/developerguide/GettingStarted.Python.03.html
@app.route('/post', methods=['POST'])
def post():#主页
if request.method == 'POST':
f = request.files['file']
title = request.form['title']
ratings = request.form['ratings']
user_comment = request.form['comments']
# print(f)
try:
user_ip = request.headers['X-Forwarded-For'].split(',')[0]
except:
user_ip=request.remote_addr#用户ip
# print(user_ip)
filename = f.filename
# keys = []
# resp = s3Client.list_objects_v2(Bucket=BUCKET_NAME)
# for obj in resp['Contents']:
# keys.append(obj['Key'])
#
# image_links = []
# z = len(keys)
# print(z)
# for i in range(z):
# image_links.append(url+keys[i])
#
# print(image_links)
if request.form['click'] == 'Upload Image':
# object_1 = s3.Object(BUCKET_NAME,'hire2020-hire-luozhukun1031/'+filename)
# object_1.put(Body=open(data, 'rb'))
s3.Bucket(BUCKET_NAME).put_object(Key='hire2020-hire-luozhukun1031/'+filename, Body=f,ACL='public-read')
#record user ip , date, time , photo name, photo url
if('.jpg'in filename or '.jpeg' in filename or '.png' in filename):
curr_time = datetime.datetime.now()
date_str = curr_time.strftime(r'%Y-%m-%d')#日期
time_str = curr_time.strftime(r'%H:%M:%S')#时间
# print(date_str)
# print(time_str)
photo_name=''.join(filename.split('.')[:-1])#照片名字
# print(photo_name)
photo_url='https://hire2020.s3.cn-north-1.amazonaws.com.cn/hire2020-hire-luozhukun1031/'+filename
# keys = []
# resp = s3Client.list_objects_v2(Bucket=BUCKET_NAME,Prefix='hire2020-hire-luozhukun1031/')
# print(resp['Contents'])
# for bj in resp['Contents']:
# print(obj)
# keys.append(obj['Key'])
# priont(obj['Key'])
# image_links = []
# z = len(keys)
# print(z)
# print(user_ip)
# for i in range(z):
# image_links.append(url + keys[i])
# response = table.delete_item(
# Key={u'comments': {u'other_comment': None, u'user_comment': u'12'}}
'''删除表所有项目'''
# pe = "userip,datestr,timestr,photoname,photourl,comments,userID,ID"
# response = table.scan(
# ProjectionExpression=pe,
# FilterExpression=Attr('datestr').exists()
# )
# Item=response['Items']
# for i in Item:
# table.delete_item(
# Key={
# 'ID':i['ID']
# }
# )
Id=uni_id()
response = table.put_item(
Item={
'ID':Id,
'userID':Id,#生成uuid
# 'user_name':uname,
'userip': user_ip,
'datestr': date_str,
'timestr':time_str,
'photoname':photo_name,
'photourl':photo_url,
'comments':{
'usercomment':user_comment,
'othercomment':None
}
}
)
# print("PutItem succeeded:")
# print(response['I'])
return render_template("upload_succeed.html",suc_message='upload successful')
else:
err_message='picture format not right!'
return render_template("upload_error.html",err_message=err_message)
@app.route('/upload', methods=['GET','POST'])#获取全部图片
def upload():
if request.method == 'POST':
if request.form['click'] == 'View Image':
pe = "userip,datestr,timestr,photoname,photourl,comments,userID,ID"
# ean={ "#date": 'date', '#time':'time',}
# Expression Attribute Names for Projection Expression only.
response = table.scan(
ProjectionExpression=pe,
FilterExpression=Attr('datestr').exists()
)
Item=response['Items']
# print(Item)
# return '<img src="' + image_links[0]+ '"/>'
return render_template("gallary.html", Item=Item)
@app.route('/pic_details', methods=['GET','POST'])#获取图片详情
def pic_details():
picture_detail={}
if request.method == 'POST':
picture_detail['userID'] = request.form['userID']
picture_detail['ID'] = request.form['ID']
picture_detail['userip'] = request.form['userip']
picture_detail['uploaddate'] = request.form['uploaddatetime']
picture_detail['photourl'] = request.form['photourl']
picture_detail['usercomment'] = request.form['usercomment']
picture_detail['photoname']=request.form['photoname']
if request.form['othercomment']!='None':
picture_detail['othercomment']=str(request.form['othercomment'])
else:
picture_detail['othercomment']='暂无其他人评论'
return render_template("picture_detail.html", picture_detail=picture_detail)
@app.route('/comment', methods=['GET','POST'])
def comment():
if request.method == 'POST':
# print(request.form)
other_comment = request.form['comments']
ID=request.form['ID']
userID=request.form['userID']
usercomment=request.form['usercomment']
uploaddate=request.form['uploaddate']
photoname=request.form['photoname']
photourl=request.form['photourl']
# print(photourl)
userip=request.form['userip']
try:
userIp = request.headers['X-Forwarded-For'].split(',')[0]
except:
userIp=request.remote_addr#用户ip
if request.form['click'] == '评论':
# response = table.update_item(
# Key={
# # 'datestr': uploaddate.split(' ')[0],
# # 'timestr':uploaddate.split(' ')[1],
# # 'photoname':photoname
# 'ID':ID
# },
# UpdateExpression="set comments.othercomment = :coc",
# ExpressionAttributeValues={
# ':coc':{'userIP':userip,'commentTime':datetime.datetime.now().strftime("%Y-%m-%d:%H-%M-%S"),'commentContent':user_comment}
# },
# # ReturnValues="UPDATED_NEW"
# )
# new_uuid=uni_id()
# Item={
# 'ID':new_uuid,
# 'userID':new_uuid,#生成uuid
# # 'user_name':uname,
# 'userip': userip,
# 'datestr': uploaddate.split(' ')[0],
# 'timestr':uploaddate.split(' ')[1],
# 'photoname':photoname,
# 'photourl':photourl,
# 'comments':{
# 'usercomment':usercomment,
# 'othercomment':{'userIP':userip,'commentTime':datetime.datetime.now().strftime("%Y-%m-%d:%H:%M:%S"),'commentContent':user_comment}
# }
# }
# table.put_item(Item=Item)#新增一条数据
othercomments={'userIP':userIp.encode('utf-8'),'commentTime':datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S").encode('utf-8'),'commentContent':other_comment.encode('utf-8')}
I_tems=table.query(ProjectionExpression='comments',
KeyConditionExpression=Key('ID').eq(ID)
)
already_comments=I_tems['Items'][0]['comments']['othercomment']
table.update_item(
Key={
'ID':ID
},
UpdateExpression="set comments.othercomment= :coc",
ExpressionAttributeValues={
':coc': str(already_comments).replace('None','')+'--'+str(othercomments),
},
ReturnValues="UPDATED_NEW"
)
pe = "userip,datestr,timestr,photoname,photourl,comments,userID,ID"
response = table.scan(
ProjectionExpression=pe,
FilterExpression=Key('ID').eq(ID)
)
picture_detail={}
item = response['Items']
# print(item)
othercomments=''
for it in item:
othercomments=othercomments+str(it['comments']['othercomment'])
# picture_detail['userID']=item['userID']
picture_detail['ID']=item[0]['ID']
picture_detail['userip'] = item[0]['userip']
picture_detail['uploaddate'] = item[0]['datestr']+' '+item[0]['timestr']
picture_detail['photourl'] = item[0]['photourl']
picture_detail['usercomment'] = item[0]['comments']['usercomment']
picture_detail['photoname']=item[0]['photoname']
picture_detail['othercomment']=othercomments.replace('None','')
return render_template("picture_detail.html", picture_detail=picture_detail)
@app.route('/picture_search', methods=['GET','POST'])#按照片名字或者日期进行数据搜索
def picture_search():
if request.method == 'POST':
photoname=request.form['search_name'].strip()#过滤条件按照片名字
# print(photoname)
if request.form['search_date']:
date=request.form['search_date']#过滤条件按日期
else:
date=None
if date not in ['0000-00-00','',None] and photoname in['',None]:
response = table.scan(
FilterExpression=Attr('datestr').eq(date)
)
Item=response['Items']
elif date in ['0000-00-00','',None] and photoname not in['',None]:
response = table.scan(
FilterExpression=Attr('photoname').eq(photoname)
)
Item=response['Items']
else:
response = table.scan(
FilterExpression=Attr('photoname').eq(photoname) and Attr('datestr').eq(date)
)
Item=response['Items']
if len(Item)==0:#如果无结果，重新扫描全表
response = table.scan(
FilterExpression=Attr('datestr').exists()
)
Item=response['Items']
# print(Item)
# return '<img src="' + image_links[0]+ '"/>'
return render_template("gallary.html", Item=Item)
@app.route('/picture_share', methods=['GET','POST'])#分享图片并生成有时效的链接
def picture_share():
if request.method == 'POST':
ID=request.form['ID']
photourl=request.form['photourl']
key_photo=photourl.replace("https://hire2020.s3.cn-north-1.amazonaws.com.cn/",'')
generateUrl=generate_link(key_photo)
pe = "userip,datestr,timestr,photoname,photourl,comments,userID,ID"
response = table.scan(
ProjectionExpression=pe,
FilterExpression=Key('ID').eq(ID)
)
picture_detail={}
item = response['Items']
print(item)
# print(item)
othercomments=''
for it in item:
othercomments=othercomments+str(it['comments']['othercomment'])
# picture_detail['userID']=item['userID']
picture_detail['ID']=item[0]['ID']
picture_detail['userip'] = item[0]['userip']
picture_detail['uploaddate'] = item[0]['datestr']+' '+item[0]['timestr']
picture_detail['photourl'] = item[0]['photourl']
picture_detail['usercomment'] = item[0]['comments']['usercomment']
picture_detail['photoname']=item[0]['photoname']
picture_detail['othercomment']=othercomments.replace('None','')
return render_template("picture_share.html", picture_detail=picture_detail,generateUrl=generateUrl,Item=item)
def generate_link(key_photo):#生成预签名
url = s3Client.generate_presigned_url(
ClientMethod='get_object',
Params={
'Bucket': BUCKET_NAME,
'Key':key_photo
},
ExpiresIn=60#设置过期时间60s
)
return url
if __name__== '__main__':
app.run(host = host,port = port, debug = True)
# port = os.getenv('0.0.0.0','8080')
#
# if __name__== '__main__':
# app.run(host = '0.0.0.0',port = int(port), debug = True)