Question

我制作了一个简单的烧瓶api，用于侦听JSON帖子，解析包含图像的URL，最后将此图像附加到电子邮件中并发送电子邮件。这是为每个传入的JSON帖子触发一个唯一的电子邮件..它在第一个请求时工作正常，图像按预期附加，电子邮件被发送和接收....但是当下一个POST到来时，附件来自以前的电子邮件没有清理过＃34;并且随后的电子邮件中包含旧附件..这将永远持续下去。

所以我的问题是，如何在每次POST后清理电子邮件正文，附件等？

我尝试在＆＃34;最后＆＃34;添加内容。阻止，例如清除正文电子邮件正文变量等。但我不确定这是否是正确的方法，所以我想我会问这里

这是代码。它应该是非常不言自明的我希望（缩进搞砸了）。＃！/ usr / bin / env python3 来自flask进口烧瓶来自烧瓶导入请求，会话 import urllib.request 进口时间

verbose = True
email_notify = True
webdav_path = '/var/www/webdav/'

def fetch_image(url, urldir):
    """ Fetch string after delimiter (webdir/) """
    return url.partition(urldir)[2]

if email_notify:
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.image import MIMEImage
strFrom = 'xxx@xxx.xxx'
strTo = 'xxx@xxx.xxx'
msgRoot = MIMEMultipart('related')
msgRoot['Subject'] = 'test message'
msgRoot['From'] = strFrom
msgRoot['To'] = strTo


app = Flask(__name__)

@app.route('/alert', methods = ['POST'])
def postJsonHandler():
print ('Is json? ',request.is_json) if verbose else None
alert_localtime = time.strftime("%Y-%m-%d %H:%M")
d = request.get_json()
chart_url = d['imageUrl']
if email_notify:
    if chart_url:
        if:
            chart_png = fetch_image(chart_url,'/webdav/')
            final_image = webdav_path + chart_png
    else:
       print('No image found in POST, so nothing to attach')  

    try:
        msgRoot.preamble = 'multi part message'
        msgAlternative = MIMEMultipart('alternative')
        msgRoot.attach(msgAlternative)
        msgText = MIMEText('Alternative plain text message.')
        msgAlternative.attach(msgText)
        mail_body = """\
<p>Alert for: """ + alert_title + """<br>
<br>
Alert trigged at: """ + alert_localtime + """.<br>
Alert reason: """ + 'somereason' + """.<br>
<br>
Graph:<br>
<br>
<img src="cid:image1">
</p>
"""
        msgText = MIMEText(mail_body, 'html')
        msgAlternative.attach(msgText)

        fp = open(final_image, 'rb')
        msgImage = MIMEImage(fp.read())
        fp.close()
        msgImage.add_header('Content-ID', '<image1>')
        msgRoot.attach(msgImage)
        smtp = smtplib.SMTP()
        smtp.connect('localhost')
        smtp.sendmail(strFrom, strTo, msgRoot.as_string())
        smtp.quit()
        print ("Successfully sent email"):
    except:
        pass)
    finally:
        ??
return 'JSON posted'

app.run(host='127.0.0.1', port= 8091, debug=True)

使用flask发送多封电子邮件时附加旧数据

0 个答案: